Home / 21,397.17-29,518.15-13,845.93

Finding the Fourth Proportional to 21,397.17, 29,518.15 and 13,845.93

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Solution

The fourth proportional to 21,397.17, 29,518.15 and 13,845.93 is: 19,100.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397.17 : 29,518.15 = 13,845.93 : x
  2. Step 2: Convert to fraction form
    21,397.17/29,518.15 = 13,845.93/x
  3. Step 3: Cross multiply
    21,397.17x = 29,518.15 × 13,845.93
  4. Step 4: Simplify right side
    21,397.17x = 408,706,204.01
  5. Step 5: Solve for x
    x = 408,706,204.01/21,397.17
  6. Step 6: Final answer
    x = 19,100.95

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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.