Home / 35,155.56-48,515.96-20,045.78

Finding the Fourth Proportional to 35,155.56, 48,515.96 and 20,045.78

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Solution

The fourth proportional to 35,155.56, 48,515.96 and 20,045.78 is: 27,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,155.56 : 48,515.96 = 20,045.78 : x
  2. Step 2: Convert to fraction form
    35,155.56/48,515.96 = 20,045.78/x
  3. Step 3: Cross multiply
    35,155.56x = 48,515.96 × 20,045.78
  4. Step 4: Simplify right side
    35,155.56x = 972,540,260.65
  5. Step 5: Solve for x
    x = 972,540,260.65/35,155.56
  6. Step 6: Final answer
    x = 27,663.91

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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.