Home / 25,929.15-35,781.63-15,857.70

Finding the Fourth Proportional to 25,929.15, 35,781.63 and 15,857.70

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Solution

The fourth proportional to 25,929.15, 35,781.63 and 15,857.70 is: 21,883.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,929.15 : 35,781.63 = 15,857.70 : x
  2. Step 2: Convert to fraction form
    25,929.15/35,781.63 = 15,857.70/x
  3. Step 3: Cross multiply
    25,929.15x = 35,781.63 × 15,857.70
  4. Step 4: Simplify right side
    25,929.15x = 567,414,354.05
  5. Step 5: Solve for x
    x = 567,414,354.05/25,929.15
  6. Step 6: Final answer
    x = 21,883.26

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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.