Home / 21,531.39-29,723.40-14,373.39

Finding the Fourth Proportional to 21,531.39, 29,723.40 and 14,373.39

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Solution

The fourth proportional to 21,531.39, 29,723.40 and 14,373.39 is: 19,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,531.39 : 29,723.40 = 14,373.39 : x
  2. Step 2: Convert to fraction form
    21,531.39/29,723.40 = 14,373.39/x
  3. Step 3: Cross multiply
    21,531.39x = 29,723.40 × 14,373.39
  4. Step 4: Simplify right side
    21,531.39x = 427,226,020.33
  5. Step 5: Solve for x
    x = 427,226,020.33/21,531.39
  6. Step 6: Final answer
    x = 19,842.01

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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.