Home / 28,242.66-42,336.45-13,447.62

Finding the Fourth Proportional to 28,242.66, 42,336.45 and 13,447.62

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Solution

The fourth proportional to 28,242.66, 42,336.45 and 13,447.62 is: 20,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.66 : 42,336.45 = 13,447.62 : x
  2. Step 2: Convert to fraction form
    28,242.66/42,336.45 = 13,447.62/x
  3. Step 3: Cross multiply
    28,242.66x = 42,336.45 × 13,447.62
  4. Step 4: Simplify right side
    28,242.66x = 569,324,491.75
  5. Step 5: Solve for x
    x = 569,324,491.75/28,242.66
  6. Step 6: Final answer
    x = 20,158.32

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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.