Home / 28,366.10-42,549.15-9,898.10

Finding the Fourth Proportional to 28,366.10, 42,549.15 and 9,898.10

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Solution

The fourth proportional to 28,366.10, 42,549.15 and 9,898.10 is: 14,847.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.10 : 42,549.15 = 9,898.10 : x
  2. Step 2: Convert to fraction form
    28,366.10/42,549.15 = 9,898.10/x
  3. Step 3: Cross multiply
    28,366.10x = 42,549.15 × 9,898.10
  4. Step 4: Simplify right side
    28,366.10x = 421,155,741.62
  5. Step 5: Solve for x
    x = 421,155,741.62/28,366.10
  6. Step 6: Final answer
    x = 14,847.15

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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.