Home / 21,306.68-29,402.75-12,353.95

Finding the Fourth Proportional to 21,306.68, 29,402.75 and 12,353.95

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Solution

The fourth proportional to 21,306.68, 29,402.75 and 12,353.95 is: 17,048.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.68 : 29,402.75 = 12,353.95 : x
  2. Step 2: Convert to fraction form
    21,306.68/29,402.75 = 12,353.95/x
  3. Step 3: Cross multiply
    21,306.68x = 29,402.75 × 12,353.95
  4. Step 4: Simplify right side
    21,306.68x = 363,239,894.58
  5. Step 5: Solve for x
    x = 363,239,894.58/21,306.68
  6. Step 6: Final answer
    x = 17,048.17

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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.