Home / 25,781.73-35,578.64-15,708.06

Finding the Fourth Proportional to 25,781.73, 35,578.64 and 15,708.06

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Solution

The fourth proportional to 25,781.73, 35,578.64 and 15,708.06 is: 21,677.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,781.73 : 35,578.64 = 15,708.06 : x
  2. Step 2: Convert to fraction form
    25,781.73/35,578.64 = 15,708.06/x
  3. Step 3: Cross multiply
    25,781.73x = 35,578.64 × 15,708.06
  4. Step 4: Simplify right side
    25,781.73x = 558,871,451.11
  5. Step 5: Solve for x
    x = 558,871,451.11/25,781.73
  6. Step 6: Final answer
    x = 21,677.04

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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.