Home / 38,722.80-58,088.52-12,418.32

Finding the Fourth Proportional to 38,722.80, 58,088.52 and 12,418.32

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Solution

The fourth proportional to 38,722.80, 58,088.52 and 12,418.32 is: 18,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,722.80 : 58,088.52 = 12,418.32 : x
  2. Step 2: Convert to fraction form
    38,722.80/58,088.52 = 12,418.32/x
  3. Step 3: Cross multiply
    38,722.80x = 58,088.52 × 12,418.32
  4. Step 4: Simplify right side
    38,722.80x = 721,361,829.69
  5. Step 5: Solve for x
    x = 721,361,829.69/38,722.80
  6. Step 6: Final answer
    x = 18,628.87

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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.