Home / 21,542.34-32,335.29-15,309.39

Finding the Fourth Proportional to 21,542.34, 32,335.29 and 15,309.39

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Solution

The fourth proportional to 21,542.34, 32,335.29 and 15,309.39 is: 22,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542.34 : 32,335.29 = 15,309.39 : x
  2. Step 2: Convert to fraction form
    21,542.34/32,335.29 = 15,309.39/x
  3. Step 3: Cross multiply
    21,542.34x = 32,335.29 × 15,309.39
  4. Step 4: Simplify right side
    21,542.34x = 495,033,565.37
  5. Step 5: Solve for x
    x = 495,033,565.37/21,542.34
  6. Step 6: Final answer
    x = 22,979.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.