Home / 25,565.51-35,281.85-15,359.66

Finding the Fourth Proportional to 25,565.51, 35,281.85 and 15,359.66

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Solution

The fourth proportional to 25,565.51, 35,281.85 and 15,359.66 is: 21,197.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.51 : 35,281.85 = 15,359.66 : x
  2. Step 2: Convert to fraction form
    25,565.51/35,281.85 = 15,359.66/x
  3. Step 3: Cross multiply
    25,565.51x = 35,281.85 × 15,359.66
  4. Step 4: Simplify right side
    25,565.51x = 541,916,966.96
  5. Step 5: Solve for x
    x = 541,916,966.96/25,565.51
  6. Step 6: Final answer
    x = 21,197.19

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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.