Home / 19,898.20-29,840.62-10,031.20

Finding the Fourth Proportional to 19,898.20, 29,840.62 and 10,031.20

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Solution

The fourth proportional to 19,898.20, 29,840.62 and 10,031.20 is: 15,043.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.20 : 29,840.62 = 10,031.20 : x
  2. Step 2: Convert to fraction form
    19,898.20/29,840.62 = 10,031.20/x
  3. Step 3: Cross multiply
    19,898.20x = 29,840.62 × 10,031.20
  4. Step 4: Simplify right side
    19,898.20x = 299,337,227.34
  5. Step 5: Solve for x
    x = 299,337,227.34/19,898.20
  6. Step 6: Final answer
    x = 15,043.43

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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.