Home / 28,301.40-42,441.30-8,573.40

Finding the Fourth Proportional to 28,301.40, 42,441.30 and 8,573.40

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Solution

The fourth proportional to 28,301.40, 42,441.30 and 8,573.40 is: 12,856.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.40 : 42,441.30 = 8,573.40 : x
  2. Step 2: Convert to fraction form
    28,301.40/42,441.30 = 8,573.40/x
  3. Step 3: Cross multiply
    28,301.40x = 42,441.30 × 8,573.40
  4. Step 4: Simplify right side
    28,301.40x = 363,866,241.42
  5. Step 5: Solve for x
    x = 363,866,241.42/28,301.40
  6. Step 6: Final answer
    x = 12,856.83

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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.