Home / 20,941.02-31,417.38-8,469.80

Finding the Fourth Proportional to 20,941.02, 31,417.38 and 8,469.80

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Solution

The fourth proportional to 20,941.02, 31,417.38 and 8,469.80 is: 12,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.02 : 31,417.38 = 8,469.80 : x
  2. Step 2: Convert to fraction form
    20,941.02/31,417.38 = 8,469.80/x
  3. Step 3: Cross multiply
    20,941.02x = 31,417.38 × 8,469.80
  4. Step 4: Simplify right side
    20,941.02x = 266,098,925.12
  5. Step 5: Solve for x
    x = 266,098,925.12/20,941.02
  6. Step 6: Final answer
    x = 12,707.07

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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.