Home / 28,165.86-42,247.16-9,445.14

Finding the Fourth Proportional to 28,165.86, 42,247.16 and 9,445.14

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Solution

The fourth proportional to 28,165.86, 42,247.16 and 9,445.14 is: 14,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.86 : 42,247.16 = 9,445.14 : x
  2. Step 2: Convert to fraction form
    28,165.86/42,247.16 = 9,445.14/x
  3. Step 3: Cross multiply
    28,165.86x = 42,247.16 × 9,445.14
  4. Step 4: Simplify right side
    28,165.86x = 399,030,340.80
  5. Step 5: Solve for x
    x = 399,030,340.80/28,165.86
  6. Step 6: Final answer
    x = 14,167.16

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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.