Home / 30,711.52-46,080.24-15,129.28

Finding the Fourth Proportional to 30,711.52, 46,080.24 and 15,129.28

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Solution

The fourth proportional to 30,711.52, 46,080.24 and 15,129.28 is: 22,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,711.52 : 46,080.24 = 15,129.28 : x
  2. Step 2: Convert to fraction form
    30,711.52/46,080.24 = 15,129.28/x
  3. Step 3: Cross multiply
    30,711.52x = 46,080.24 × 15,129.28
  4. Step 4: Simplify right side
    30,711.52x = 697,160,853.43
  5. Step 5: Solve for x
    x = 697,160,853.43/30,711.52
  6. Step 6: Final answer
    x = 22,700.30

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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.