Home / 22,764.38-31,403.70-15,212.58

Finding the Fourth Proportional to 22,764.38, 31,403.70 and 15,212.58

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Solution

The fourth proportional to 22,764.38, 31,403.70 and 15,212.58 is: 20,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,764.38 : 31,403.70 = 15,212.58 : x
  2. Step 2: Convert to fraction form
    22,764.38/31,403.70 = 15,212.58/x
  3. Step 3: Cross multiply
    22,764.38x = 31,403.70 × 15,212.58
  4. Step 4: Simplify right side
    22,764.38x = 477,731,298.55
  5. Step 5: Solve for x
    x = 477,731,298.55/22,764.38
  6. Step 6: Final answer
    x = 20,985.91

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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.