Home / 28,070.38-38,737.20-15,323.57

Finding the Fourth Proportional to 28,070.38, 38,737.20 and 15,323.57

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Solution

The fourth proportional to 28,070.38, 38,737.20 and 15,323.57 is: 21,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.38 : 38,737.20 = 15,323.57 : x
  2. Step 2: Convert to fraction form
    28,070.38/38,737.20 = 15,323.57/x
  3. Step 3: Cross multiply
    28,070.38x = 38,737.20 × 15,323.57
  4. Step 4: Simplify right side
    28,070.38x = 593,592,292.65
  5. Step 5: Solve for x
    x = 593,592,292.65/28,070.38
  6. Step 6: Final answer
    x = 21,146.57

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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.