Home / 38,139.18-52,621.19-22,005.21

Finding the Fourth Proportional to 38,139.18, 52,621.19 and 22,005.21

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Solution

The fourth proportional to 38,139.18, 52,621.19 and 22,005.21 is: 30,360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,139.18 : 52,621.19 = 22,005.21 : x
  2. Step 2: Convert to fraction form
    38,139.18/52,621.19 = 22,005.21/x
  3. Step 3: Cross multiply
    38,139.18x = 52,621.19 × 22,005.21
  4. Step 4: Simplify right side
    38,139.18x = 1,157,940,336.40
  5. Step 5: Solve for x
    x = 1,157,940,336.40/38,139.18
  6. Step 6: Final answer
    x = 30,360.91

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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.