Home / 21,033.59-31,454.44-15,700.55

Finding the Fourth Proportional to 21,033.59, 31,454.44 and 15,700.55

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Solution

The fourth proportional to 21,033.59, 31,454.44 and 15,700.55 is: 23,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.59 : 31,454.44 = 15,700.55 : x
  2. Step 2: Convert to fraction form
    21,033.59/31,454.44 = 15,700.55/x
  3. Step 3: Cross multiply
    21,033.59x = 31,454.44 × 15,700.55
  4. Step 4: Simplify right side
    21,033.59x = 493,851,811.42
  5. Step 5: Solve for x
    x = 493,851,811.42/21,033.59
  6. Step 6: Final answer
    x = 23,479.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.