Home / 21,306.17-29,402.06-12,353.45

Finding the Fourth Proportional to 21,306.17, 29,402.06 and 12,353.45

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Solution

The fourth proportional to 21,306.17, 29,402.06 and 12,353.45 is: 17,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.17 : 29,402.06 = 12,353.45 : x
  2. Step 2: Convert to fraction form
    21,306.17/29,402.06 = 12,353.45/x
  3. Step 3: Cross multiply
    21,306.17x = 29,402.06 × 12,353.45
  4. Step 4: Simplify right side
    21,306.17x = 363,216,669.33
  5. Step 5: Solve for x
    x = 363,216,669.33/21,306.17
  6. Step 6: Final answer
    x = 17,047.49

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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.