Home / 25,389.21-35,030.16-14,777.40

Finding the Fourth Proportional to 25,389.21, 35,030.16 and 14,777.40

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Solution

The fourth proportional to 25,389.21, 35,030.16 and 14,777.40 is: 20,388.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,389.21 : 35,030.16 = 14,777.40 : x
  2. Step 2: Convert to fraction form
    25,389.21/35,030.16 = 14,777.40/x
  3. Step 3: Cross multiply
    25,389.21x = 35,030.16 × 14,777.40
  4. Step 4: Simplify right side
    25,389.21x = 517,654,686.38
  5. Step 5: Solve for x
    x = 517,654,686.38/25,389.21
  6. Step 6: Final answer
    x = 20,388.77

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Half scale
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Double scale
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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.