Home / 19,642.06-29,428.71-13,381.75

Finding the Fourth Proportional to 19,642.06, 29,428.71 and 13,381.75

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Solution

The fourth proportional to 19,642.06, 29,428.71 and 13,381.75 is: 20,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.06 : 29,428.71 = 13,381.75 : x
  2. Step 2: Convert to fraction form
    19,642.06/29,428.71 = 13,381.75/x
  3. Step 3: Cross multiply
    19,642.06x = 29,428.71 × 13,381.75
  4. Step 4: Simplify right side
    19,642.06x = 393,807,640.04
  5. Step 5: Solve for x
    x = 393,807,640.04/19,642.06
  6. Step 6: Final answer
    x = 20,049.20

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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.