Home / 40,377.85-55,663.67-28,404.02

Finding the Fourth Proportional to 40,377.85, 55,663.67 and 28,404.02

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Solution

The fourth proportional to 40,377.85, 55,663.67 and 28,404.02 is: 39,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,377.85 : 55,663.67 = 28,404.02 : x
  2. Step 2: Convert to fraction form
    40,377.85/55,663.67 = 28,404.02/x
  3. Step 3: Cross multiply
    40,377.85x = 55,663.67 × 28,404.02
  4. Step 4: Simplify right side
    40,377.85x = 1,581,072,206.12
  5. Step 5: Solve for x
    x = 1,581,072,206.12/40,377.85
  6. Step 6: Final answer
    x = 39,156.92

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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.