Home / 38,155.23-52,654.05-21,388.23

Finding the Fourth Proportional to 38,155.23, 52,654.05 and 21,388.23

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Solution

The fourth proportional to 38,155.23, 52,654.05 and 21,388.23 is: 29,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,155.23 : 52,654.05 = 21,388.23 : x
  2. Step 2: Convert to fraction form
    38,155.23/52,654.05 = 21,388.23/x
  3. Step 3: Cross multiply
    38,155.23x = 52,654.05 × 21,388.23
  4. Step 4: Simplify right side
    38,155.23x = 1,126,176,931.83
  5. Step 5: Solve for x
    x = 1,126,176,931.83/38,155.23
  6. Step 6: Final answer
    x = 29,515.66

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Half scale
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Double scale
Find fourth proportional to 38,156.23, 52,655.43 and 21,389.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.