Home / 22,131.79-30,542.02-12,060.20

Finding the Fourth Proportional to 22,131.79, 30,542.02 and 12,060.20

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Solution

The fourth proportional to 22,131.79, 30,542.02 and 12,060.20 is: 16,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,131.79 : 30,542.02 = 12,060.20 : x
  2. Step 2: Convert to fraction form
    22,131.79/30,542.02 = 12,060.20/x
  3. Step 3: Cross multiply
    22,131.79x = 30,542.02 × 12,060.20
  4. Step 4: Simplify right side
    22,131.79x = 368,343,043.56
  5. Step 5: Solve for x
    x = 368,343,043.56/22,131.79
  6. Step 6: Final answer
    x = 16,643.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.