Home / 48,239.10-72,370.13-20,143.58

Finding the Fourth Proportional to 48,239.10, 72,370.13 and 20,143.58

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Solution

The fourth proportional to 48,239.10, 72,370.13 and 20,143.58 is: 30,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,239.10 : 72,370.13 = 20,143.58 : x
  2. Step 2: Convert to fraction form
    48,239.10/72,370.13 = 20,143.58/x
  3. Step 3: Cross multiply
    48,239.10x = 72,370.13 × 20,143.58
  4. Step 4: Simplify right side
    48,239.10x = 1,457,793,040.70
  5. Step 5: Solve for x
    x = 1,457,793,040.70/48,239.10
  6. Step 6: Final answer
    x = 30,220.15

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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.