Home / 21,614.02-29,828.18-12,182.38

Finding the Fourth Proportional to 21,614.02, 29,828.18 and 12,182.38

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Solution

The fourth proportional to 21,614.02, 29,828.18 and 12,182.38 is: 16,812.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.02 : 29,828.18 = 12,182.38 : x
  2. Step 2: Convert to fraction form
    21,614.02/29,828.18 = 12,182.38/x
  3. Step 3: Cross multiply
    21,614.02x = 29,828.18 × 12,182.38
  4. Step 4: Simplify right side
    21,614.02x = 363,378,223.47
  5. Step 5: Solve for x
    x = 363,378,223.47/21,614.02
  6. Step 6: Final answer
    x = 16,812.15

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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.