Home / 21,397.87-32,070.07-10,302.49

Finding the Fourth Proportional to 21,397.87, 32,070.07 and 10,302.49

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Solution

The fourth proportional to 21,397.87, 32,070.07 and 10,302.49 is: 15,440.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397.87 : 32,070.07 = 10,302.49 : x
  2. Step 2: Convert to fraction form
    21,397.87/32,070.07 = 10,302.49/x
  3. Step 3: Cross multiply
    21,397.87x = 32,070.07 × 10,302.49
  4. Step 4: Simplify right side
    21,397.87x = 330,401,575.47
  5. Step 5: Solve for x
    x = 330,401,575.47/21,397.87
  6. Step 6: Final answer
    x = 15,440.86

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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.