Home / 19,472.40-29,231.76-18,680.16

Finding the Fourth Proportional to 19,472.40, 29,231.76 and 18,680.16

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Solution

The fourth proportional to 19,472.40, 29,231.76 and 18,680.16 is: 28,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,472.40 : 29,231.76 = 18,680.16 : x
  2. Step 2: Convert to fraction form
    19,472.40/29,231.76 = 18,680.16/x
  3. Step 3: Cross multiply
    19,472.40x = 29,231.76 × 18,680.16
  4. Step 4: Simplify right side
    19,472.40x = 546,053,953.88
  5. Step 5: Solve for x
    x = 546,053,953.88/19,472.40
  6. Step 6: Final answer
    x = 28,042.46

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1.5x scale

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.