Home / 28,332.60-42,496.38-9,612.20

Finding the Fourth Proportional to 28,332.60, 42,496.38 and 9,612.20

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Solution

The fourth proportional to 28,332.60, 42,496.38 and 9,612.20 is: 14,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,332.60 : 42,496.38 = 9,612.20 : x
  2. Step 2: Convert to fraction form
    28,332.60/42,496.38 = 9,612.20/x
  3. Step 3: Cross multiply
    28,332.60x = 42,496.38 × 9,612.20
  4. Step 4: Simplify right side
    28,332.60x = 408,483,491.35
  5. Step 5: Solve for x
    x = 408,483,491.35/28,332.60
  6. Step 6: Final answer
    x = 14,417.44

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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.