Home / 38,618.81-53,295.25-21,623.76

Finding the Fourth Proportional to 38,618.81, 53,295.25 and 21,623.76

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Solution

The fourth proportional to 38,618.81, 53,295.25 and 21,623.76 is: 29,841.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,618.81 : 53,295.25 = 21,623.76 : x
  2. Step 2: Convert to fraction form
    38,618.81/53,295.25 = 21,623.76/x
  3. Step 3: Cross multiply
    38,618.81x = 53,295.25 × 21,623.76
  4. Step 4: Simplify right side
    38,618.81x = 1,152,443,428.66
  5. Step 5: Solve for x
    x = 1,152,443,428.66/38,618.81
  6. Step 6: Final answer
    x = 29,841.51

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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.