Home / 21,875.97-30,188.04-13,374.92

Finding the Fourth Proportional to 21,875.97, 30,188.04 and 13,374.92

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Solution

The fourth proportional to 21,875.97, 30,188.04 and 13,374.92 is: 18,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,875.97 : 30,188.04 = 13,374.92 : x
  2. Step 2: Convert to fraction form
    21,875.97/30,188.04 = 13,374.92/x
  3. Step 3: Cross multiply
    21,875.97x = 30,188.04 × 13,374.92
  4. Step 4: Simplify right side
    21,875.97x = 403,762,720.50
  5. Step 5: Solve for x
    x = 403,762,720.50/21,875.97
  6. Step 6: Final answer
    x = 18,456.90

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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.