Home / 31,480.10-47,202.87-21,621.86

Finding the Fourth Proportional to 31,480.10, 47,202.87 and 21,621.86

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Solution

The fourth proportional to 31,480.10, 47,202.87 and 21,621.86 is: 32,420.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.10 : 47,202.87 = 21,621.86 : x
  2. Step 2: Convert to fraction form
    31,480.10/47,202.87 = 21,621.86/x
  3. Step 3: Cross multiply
    31,480.10x = 47,202.87 × 21,621.86
  4. Step 4: Simplify right side
    31,480.10x = 1,020,613,846.74
  5. Step 5: Solve for x
    x = 1,020,613,846.74/31,480.10
  6. Step 6: Final answer
    x = 32,420.92

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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.