Home / 20,762.20-31,153.02-9,073.90

Finding the Fourth Proportional to 20,762.20, 31,153.02 and 9,073.90

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Solution

The fourth proportional to 20,762.20, 31,153.02 and 9,073.90 is: 13,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.20 : 31,153.02 = 9,073.90 : x
  2. Step 2: Convert to fraction form
    20,762.20/31,153.02 = 9,073.90/x
  3. Step 3: Cross multiply
    20,762.20x = 31,153.02 × 9,073.90
  4. Step 4: Simplify right side
    20,762.20x = 282,679,388.18
  5. Step 5: Solve for x
    x = 282,679,388.18/20,762.20
  6. Step 6: Final answer
    x = 13,615.10

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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.