Home / 38,760.12-58,127.22-12,458.61

Finding the Fourth Proportional to 38,760.12, 58,127.22 and 12,458.61

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Solution

The fourth proportional to 38,760.12, 58,127.22 and 12,458.61 is: 18,683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,760.12 : 58,127.22 = 12,458.61 : x
  2. Step 2: Convert to fraction form
    38,760.12/58,127.22 = 12,458.61/x
  3. Step 3: Cross multiply
    38,760.12x = 58,127.22 × 12,458.61
  4. Step 4: Simplify right side
    38,760.12x = 724,184,364.36
  5. Step 5: Solve for x
    x = 724,184,364.36/38,760.12
  6. Step 6: Final answer
    x = 18,683.75

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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.