Home / 20,892.02-31,348.01-9,203.70

Finding the Fourth Proportional to 20,892.02, 31,348.01 and 9,203.70

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Solution

The fourth proportional to 20,892.02, 31,348.01 and 9,203.70 is: 13,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.02 : 31,348.01 = 9,203.70 : x
  2. Step 2: Convert to fraction form
    20,892.02/31,348.01 = 9,203.70/x
  3. Step 3: Cross multiply
    20,892.02x = 31,348.01 × 9,203.70
  4. Step 4: Simplify right side
    20,892.02x = 288,517,679.64
  5. Step 5: Solve for x
    x = 288,517,679.64/20,892.02
  6. Step 6: Final answer
    x = 13,809.95

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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.