Home / 28,772.16-39,703.92-18,545.04

Finding the Fourth Proportional to 28,772.16, 39,703.92 and 18,545.04

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Solution

The fourth proportional to 28,772.16, 39,703.92 and 18,545.04 is: 25,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772.16 : 39,703.92 = 18,545.04 : x
  2. Step 2: Convert to fraction form
    28,772.16/39,703.92 = 18,545.04/x
  3. Step 3: Cross multiply
    28,772.16x = 39,703.92 × 18,545.04
  4. Step 4: Simplify right side
    28,772.16x = 736,310,784.56
  5. Step 5: Solve for x
    x = 736,310,784.56/28,772.16
  6. Step 6: Final answer
    x = 25,591.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.