Home / 28,432.35-42,656.73-8,713.81

Finding the Fourth Proportional to 28,432.35, 42,656.73 and 8,713.81

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Solution

The fourth proportional to 28,432.35, 42,656.73 and 8,713.81 is: 13,073.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.35 : 42,656.73 = 8,713.81 : x
  2. Step 2: Convert to fraction form
    28,432.35/42,656.73 = 8,713.81/x
  3. Step 3: Cross multiply
    28,432.35x = 42,656.73 × 8,713.81
  4. Step 4: Simplify right side
    28,432.35x = 371,702,640.44
  5. Step 5: Solve for x
    x = 371,702,640.44/28,432.35
  6. Step 6: Final answer
    x = 13,073.23

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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.