Home / 27,345.20-37,737.16-15,407.88

Finding the Fourth Proportional to 27,345.20, 37,737.16 and 15,407.88

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Solution

The fourth proportional to 27,345.20, 37,737.16 and 15,407.88 is: 21,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,345.20 : 37,737.16 = 15,407.88 : x
  2. Step 2: Convert to fraction form
    27,345.20/37,737.16 = 15,407.88/x
  3. Step 3: Cross multiply
    27,345.20x = 37,737.16 × 15,407.88
  4. Step 4: Simplify right side
    27,345.20x = 581,449,632.82
  5. Step 5: Solve for x
    x = 581,449,632.82/27,345.20
  6. Step 6: Final answer
    x = 21,263.32

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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.