Home / 40,207.52-60,315.12-18,020

Finding the Fourth Proportional to 40,207.52, 60,315.12 and 18,020

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Solution

The fourth proportional to 40,207.52, 60,315.12 and 18,020 is: 27,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,207.52 : 60,315.12 = 18,020 : x
  2. Step 2: Convert to fraction form
    40,207.52/60,315.12 = 18,020/x
  3. Step 3: Cross multiply
    40,207.52x = 60,315.12 × 18,020
  4. Step 4: Simplify right side
    40,207.52x = 1,086,878,462.40
  5. Step 5: Solve for x
    x = 1,086,878,462.40/40,207.52
  6. Step 6: Final answer
    x = 27,031.72

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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.