Home / 19,901.13-27,478.98-15,294.62

Finding the Fourth Proportional to 19,901.13, 27,478.98 and 15,294.62

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Solution

The fourth proportional to 19,901.13, 27,478.98 and 15,294.62 is: 21,118.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,901.13 : 27,478.98 = 15,294.62 : x
  2. Step 2: Convert to fraction form
    19,901.13/27,478.98 = 15,294.62/x
  3. Step 3: Cross multiply
    19,901.13x = 27,478.98 × 15,294.62
  4. Step 4: Simplify right side
    19,901.13x = 420,280,343.22
  5. Step 5: Solve for x
    x = 420,280,343.22/19,901.13
  6. Step 6: Final answer
    x = 21,118.42

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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.