Home / 28,927.71-43,397.37-12,287.61

Finding the Fourth Proportional to 28,927.71, 43,397.37 and 12,287.61

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Solution

The fourth proportional to 28,927.71, 43,397.37 and 12,287.61 is: 18,433.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.71 : 43,397.37 = 12,287.61 : x
  2. Step 2: Convert to fraction form
    28,927.71/43,397.37 = 12,287.61/x
  3. Step 3: Cross multiply
    28,927.71x = 43,397.37 × 12,287.61
  4. Step 4: Simplify right side
    28,927.71x = 533,249,957.59
  5. Step 5: Solve for x
    x = 533,249,957.59/28,927.71
  6. Step 6: Final answer
    x = 18,433.88

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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.