Home / 40,269.78-60,377.10-20,510.10

Finding the Fourth Proportional to 40,269.78, 60,377.10 and 20,510.10

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Solution

The fourth proportional to 40,269.78, 60,377.10 and 20,510.10 is: 30,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,269.78 : 60,377.10 = 20,510.10 : x
  2. Step 2: Convert to fraction form
    40,269.78/60,377.10 = 20,510.10/x
  3. Step 3: Cross multiply
    40,269.78x = 60,377.10 × 20,510.10
  4. Step 4: Simplify right side
    40,269.78x = 1,238,340,358.71
  5. Step 5: Solve for x
    x = 1,238,340,358.71/40,269.78
  6. Step 6: Final answer
    x = 30,751.11

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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.