Home / 28,663.85-42,972.08-10,890.83

Finding the Fourth Proportional to 28,663.85, 42,972.08 and 10,890.83

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Solution

The fourth proportional to 28,663.85, 42,972.08 and 10,890.83 is: 16,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.85 : 42,972.08 = 10,890.83 : x
  2. Step 2: Convert to fraction form
    28,663.85/42,972.08 = 10,890.83/x
  3. Step 3: Cross multiply
    28,663.85x = 42,972.08 × 10,890.83
  4. Step 4: Simplify right side
    28,663.85x = 468,001,348.71
  5. Step 5: Solve for x
    x = 468,001,348.71/28,663.85
  6. Step 6: Final answer
    x = 16,327.24

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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.