Home / 28,034.04-38,686.18-15,458.80

Finding the Fourth Proportional to 28,034.04, 38,686.18 and 15,458.80

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Solution

The fourth proportional to 28,034.04, 38,686.18 and 15,458.80 is: 21,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.04 : 38,686.18 = 15,458.80 : x
  2. Step 2: Convert to fraction form
    28,034.04/38,686.18 = 15,458.80/x
  3. Step 3: Cross multiply
    28,034.04x = 38,686.18 × 15,458.80
  4. Step 4: Simplify right side
    28,034.04x = 598,041,919.38
  5. Step 5: Solve for x
    x = 598,041,919.38/28,034.04
  6. Step 6: Final answer
    x = 21,332.71

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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.