Home / 28,656.15-42,921.90-17,529.18

Finding the Fourth Proportional to 28,656.15, 42,921.90 and 17,529.18

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Solution

The fourth proportional to 28,656.15, 42,921.90 and 17,529.18 is: 26,255.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.15 : 42,921.90 = 17,529.18 : x
  2. Step 2: Convert to fraction form
    28,656.15/42,921.90 = 17,529.18/x
  3. Step 3: Cross multiply
    28,656.15x = 42,921.90 × 17,529.18
  4. Step 4: Simplify right side
    28,656.15x = 752,385,711.04
  5. Step 5: Solve for x
    x = 752,385,711.04/28,656.15
  6. Step 6: Final answer
    x = 26,255.65

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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.