Home / 25,708.16-35,477.28-15,635.68

Finding the Fourth Proportional to 25,708.16, 35,477.28 and 15,635.68

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Solution

The fourth proportional to 25,708.16, 35,477.28 and 15,635.68 is: 21,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,708.16 : 35,477.28 = 15,635.68 : x
  2. Step 2: Convert to fraction form
    25,708.16/35,477.28 = 15,635.68/x
  3. Step 3: Cross multiply
    25,708.16x = 35,477.28 × 15,635.68
  4. Step 4: Simplify right side
    25,708.16x = 554,711,397.35
  5. Step 5: Solve for x
    x = 554,711,397.35/25,708.16
  6. Step 6: Final answer
    x = 21,577.25

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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.