Home / 37,545.08-51,812.30-20,778.20

Finding the Fourth Proportional to 37,545.08, 51,812.30 and 20,778.20

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Solution

The fourth proportional to 37,545.08, 51,812.30 and 20,778.20 is: 28,673.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,545.08 : 51,812.30 = 20,778.20 : x
  2. Step 2: Convert to fraction form
    37,545.08/51,812.30 = 20,778.20/x
  3. Step 3: Cross multiply
    37,545.08x = 51,812.30 × 20,778.20
  4. Step 4: Simplify right side
    37,545.08x = 1,076,566,331.86
  5. Step 5: Solve for x
    x = 1,076,566,331.86/37,545.08
  6. Step 6: Final answer
    x = 28,673.97

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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.