Home / 28,925.13-43,412.27-20,625.47

Finding the Fourth Proportional to 28,925.13, 43,412.27 and 20,625.47

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Solution

The fourth proportional to 28,925.13, 43,412.27 and 20,625.47 is: 30,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.13 : 43,412.27 = 20,625.47 : x
  2. Step 2: Convert to fraction form
    28,925.13/43,412.27 = 20,625.47/x
  3. Step 3: Cross multiply
    28,925.13x = 43,412.27 × 20,625.47
  4. Step 4: Simplify right side
    28,925.13x = 895,398,472.52
  5. Step 5: Solve for x
    x = 895,398,472.52/28,925.13
  6. Step 6: Final answer
    x = 30,955.73

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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.