Home / 28,370.87-42,565.89-12,573.74

Finding the Fourth Proportional to 28,370.87, 42,565.89 and 12,573.74

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Solution

The fourth proportional to 28,370.87, 42,565.89 and 12,573.74 is: 18,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.87 : 42,565.89 = 12,573.74 : x
  2. Step 2: Convert to fraction form
    28,370.87/42,565.89 = 12,573.74/x
  3. Step 3: Cross multiply
    28,370.87x = 42,565.89 × 12,573.74
  4. Step 4: Simplify right side
    28,370.87x = 535,212,433.73
  5. Step 5: Solve for x
    x = 535,212,433.73/28,370.87
  6. Step 6: Final answer
    x = 18,864.86

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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.