Home / 20,535.24-28,341.54-12,472.97

Finding the Fourth Proportional to 20,535.24, 28,341.54 and 12,472.97

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Solution

The fourth proportional to 20,535.24, 28,341.54 and 12,472.97 is: 17,214.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.24 : 28,341.54 = 12,472.97 : x
  2. Step 2: Convert to fraction form
    20,535.24/28,341.54 = 12,472.97/x
  3. Step 3: Cross multiply
    20,535.24x = 28,341.54 × 12,472.97
  4. Step 4: Simplify right side
    20,535.24x = 353,503,036.47
  5. Step 5: Solve for x
    x = 353,503,036.47/20,535.24
  6. Step 6: Final answer
    x = 17,214.46

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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.