Home / 21,386.50-29,526.33-13,947.46

Finding the Fourth Proportional to 21,386.50, 29,526.33 and 13,947.46

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Solution

The fourth proportional to 21,386.50, 29,526.33 and 13,947.46 is: 19,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.50 : 29,526.33 = 13,947.46 : x
  2. Step 2: Convert to fraction form
    21,386.50/29,526.33 = 13,947.46/x
  3. Step 3: Cross multiply
    21,386.50x = 29,526.33 × 13,947.46
  4. Step 4: Simplify right side
    21,386.50x = 411,817,306.62
  5. Step 5: Solve for x
    x = 411,817,306.62/21,386.50
  6. Step 6: Final answer
    x = 19,255.95

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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.