Home / 19,321.10-28,981.65-14,947.10

Finding the Fourth Proportional to 19,321.10, 28,981.65 and 14,947.10

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Solution

The fourth proportional to 19,321.10, 28,981.65 and 14,947.10 is: 22,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.10 : 28,981.65 = 14,947.10 : x
  2. Step 2: Convert to fraction form
    19,321.10/28,981.65 = 14,947.10/x
  3. Step 3: Cross multiply
    19,321.10x = 28,981.65 × 14,947.10
  4. Step 4: Simplify right side
    19,321.10x = 433,191,620.72
  5. Step 5: Solve for x
    x = 433,191,620.72/19,321.10
  6. Step 6: Final answer
    x = 22,420.65

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Similar ratio
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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.