Home / 21,421.43-32,152.89-10,335.91

Finding the Fourth Proportional to 21,421.43, 32,152.89 and 10,335.91

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Solution

The fourth proportional to 21,421.43, 32,152.89 and 10,335.91 is: 15,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.43 : 32,152.89 = 10,335.91 : x
  2. Step 2: Convert to fraction form
    21,421.43/32,152.89 = 10,335.91/x
  3. Step 3: Cross multiply
    21,421.43x = 32,152.89 × 10,335.91
  4. Step 4: Simplify right side
    21,421.43x = 332,329,377.28
  5. Step 5: Solve for x
    x = 332,329,377.28/21,421.43
  6. Step 6: Final answer
    x = 15,513.87

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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.