Home / 27,909.36-38,513.88-15,972.39

Finding the Fourth Proportional to 27,909.36, 38,513.88 and 15,972.39

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Solution

The fourth proportional to 27,909.36, 38,513.88 and 15,972.39 is: 22,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.36 : 38,513.88 = 15,972.39 : x
  2. Step 2: Convert to fraction form
    27,909.36/38,513.88 = 15,972.39/x
  3. Step 3: Cross multiply
    27,909.36x = 38,513.88 × 15,972.39
  4. Step 4: Simplify right side
    27,909.36x = 615,158,711.77
  5. Step 5: Solve for x
    x = 615,158,711.77/27,909.36
  6. Step 6: Final answer
    x = 22,041.30

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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.