Home / 38,510.86-57,765.82-12,215.83

Finding the Fourth Proportional to 38,510.86, 57,765.82 and 12,215.83

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Solution

The fourth proportional to 38,510.86, 57,765.82 and 12,215.83 is: 18,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,510.86 : 57,765.82 = 12,215.83 : x
  2. Step 2: Convert to fraction form
    38,510.86/57,765.82 = 12,215.83/x
  3. Step 3: Cross multiply
    38,510.86x = 57,765.82 × 12,215.83
  4. Step 4: Simplify right side
    38,510.86x = 705,657,436.93
  5. Step 5: Solve for x
    x = 705,657,436.93/38,510.86
  6. Step 6: Final answer
    x = 18,323.60

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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.