Home / 38,384.85-57,565.65-13,420.24

Finding the Fourth Proportional to 38,384.85, 57,565.65 and 13,420.24

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Solution

The fourth proportional to 38,384.85, 57,565.65 and 13,420.24 is: 20,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,384.85 : 57,565.65 = 13,420.24 : x
  2. Step 2: Convert to fraction form
    38,384.85/57,565.65 = 13,420.24/x
  3. Step 3: Cross multiply
    38,384.85x = 57,565.65 × 13,420.24
  4. Step 4: Simplify right side
    38,384.85x = 772,544,838.76
  5. Step 5: Solve for x
    x = 772,544,838.76/38,384.85
  6. Step 6: Final answer
    x = 20,126.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.