Home / 18,929.09-28,411.22-9,575.72

Finding the Fourth Proportional to 18,929.09, 28,411.22 and 9,575.72

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Solution

The fourth proportional to 18,929.09, 28,411.22 and 9,575.72 is: 14,372.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.09 : 28,411.22 = 9,575.72 : x
  2. Step 2: Convert to fraction form
    18,929.09/28,411.22 = 9,575.72/x
  3. Step 3: Cross multiply
    18,929.09x = 28,411.22 × 9,575.72
  4. Step 4: Simplify right side
    18,929.09x = 272,057,839.70
  5. Step 5: Solve for x
    x = 272,057,839.70/18,929.09
  6. Step 6: Final answer
    x = 14,372.47

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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.