Home / 35,148.92-48,500.70-20,998.76

Finding the Fourth Proportional to 35,148.92, 48,500.70 and 20,998.76

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Solution

The fourth proportional to 35,148.92, 48,500.70 and 20,998.76 is: 28,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,148.92 : 48,500.70 = 20,998.76 : x
  2. Step 2: Convert to fraction form
    35,148.92/48,500.70 = 20,998.76/x
  3. Step 3: Cross multiply
    35,148.92x = 48,500.70 × 20,998.76
  4. Step 4: Simplify right side
    35,148.92x = 1,018,454,559.13
  5. Step 5: Solve for x
    x = 1,018,454,559.13/35,148.92
  6. Step 6: Final answer
    x = 28,975.42

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Double scale
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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.