Home / 25,447.29-35,102.57-15,870.56

Finding the Fourth Proportional to 25,447.29, 35,102.57 and 15,870.56

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Solution

The fourth proportional to 25,447.29, 35,102.57 and 15,870.56 is: 21,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,447.29 : 35,102.57 = 15,870.56 : x
  2. Step 2: Convert to fraction form
    25,447.29/35,102.57 = 15,870.56/x
  3. Step 3: Cross multiply
    25,447.29x = 35,102.57 × 15,870.56
  4. Step 4: Simplify right side
    25,447.29x = 557,097,188.47
  5. Step 5: Solve for x
    x = 557,097,188.47/25,447.29
  6. Step 6: Final answer
    x = 21,892.20

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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.