Home / 28,471.24-42,706.30-12,877.96

Finding the Fourth Proportional to 28,471.24, 42,706.30 and 12,877.96

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Solution

The fourth proportional to 28,471.24, 42,706.30 and 12,877.96 is: 19,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471.24 : 42,706.30 = 12,877.96 : x
  2. Step 2: Convert to fraction form
    28,471.24/42,706.30 = 12,877.96/x
  3. Step 3: Cross multiply
    28,471.24x = 42,706.30 × 12,877.96
  4. Step 4: Simplify right side
    28,471.24x = 549,970,023.15
  5. Step 5: Solve for x
    x = 549,970,023.15/28,471.24
  6. Step 6: Final answer
    x = 19,316.69

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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.