Home / 31,512.19-47,268.28-21,621.48

Finding the Fourth Proportional to 31,512.19, 47,268.28 and 21,621.48

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Solution

The fourth proportional to 31,512.19, 47,268.28 and 21,621.48 is: 32,432.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.19 : 47,268.28 = 21,621.48 : x
  2. Step 2: Convert to fraction form
    31,512.19/47,268.28 = 21,621.48/x
  3. Step 3: Cross multiply
    31,512.19x = 47,268.28 × 21,621.48
  4. Step 4: Simplify right side
    31,512.19x = 1,022,010,170.65
  5. Step 5: Solve for x
    x = 1,022,010,170.65/31,512.19
  6. Step 6: Final answer
    x = 32,432.22

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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.