Home / 21,730.47-32,595.71-13,988.49

Finding the Fourth Proportional to 21,730.47, 32,595.71 and 13,988.49

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Solution

The fourth proportional to 21,730.47, 32,595.71 and 13,988.49 is: 20,982.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.47 : 32,595.71 = 13,988.49 : x
  2. Step 2: Convert to fraction form
    21,730.47/32,595.71 = 13,988.49/x
  3. Step 3: Cross multiply
    21,730.47x = 32,595.71 × 13,988.49
  4. Step 4: Simplify right side
    21,730.47x = 455,964,763.38
  5. Step 5: Solve for x
    x = 455,964,763.38/21,730.47
  6. Step 6: Final answer
    x = 20,982.74

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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.