Home / 28,292.96-42,439.68-8,573.06

Finding the Fourth Proportional to 28,292.96, 42,439.68 and 8,573.06

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Solution

The fourth proportional to 28,292.96, 42,439.68 and 8,573.06 is: 12,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.96 : 42,439.68 = 8,573.06 : x
  2. Step 2: Convert to fraction form
    28,292.96/42,439.68 = 8,573.06/x
  3. Step 3: Cross multiply
    28,292.96x = 42,439.68 × 8,573.06
  4. Step 4: Simplify right side
    28,292.96x = 363,837,923.02
  5. Step 5: Solve for x
    x = 363,837,923.02/28,292.96
  6. Step 6: Final answer
    x = 12,859.66

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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.