Home / 28,031.91-41,962.01-18,151.53

Finding the Fourth Proportional to 28,031.91, 41,962.01 and 18,151.53

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Solution

The fourth proportional to 28,031.91, 41,962.01 and 18,151.53 is: 27,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.91 : 41,962.01 = 18,151.53 : x
  2. Step 2: Convert to fraction form
    28,031.91/41,962.01 = 18,151.53/x
  3. Step 3: Cross multiply
    28,031.91x = 41,962.01 × 18,151.53
  4. Step 4: Simplify right side
    28,031.91x = 761,674,592.62
  5. Step 5: Solve for x
    x = 761,674,592.62/28,031.91
  6. Step 6: Final answer
    x = 27,171.70

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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.