Home / 38,574.18-57,860.60-12,278.61

Finding the Fourth Proportional to 38,574.18, 57,860.60 and 12,278.61

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Solution

The fourth proportional to 38,574.18, 57,860.60 and 12,278.61 is: 18,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,574.18 : 57,860.60 = 12,278.61 : x
  2. Step 2: Convert to fraction form
    38,574.18/57,860.60 = 12,278.61/x
  3. Step 3: Cross multiply
    38,574.18x = 57,860.60 × 12,278.61
  4. Step 4: Simplify right side
    38,574.18x = 710,447,680.37
  5. Step 5: Solve for x
    x = 710,447,680.37/38,574.18
  6. Step 6: Final answer
    x = 18,417.70

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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.