Home / 28,543.62-39,377.06-18,475.30

Finding the Fourth Proportional to 28,543.62, 39,377.06 and 18,475.30

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Solution

The fourth proportional to 28,543.62, 39,377.06 and 18,475.30 is: 25,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.62 : 39,377.06 = 18,475.30 : x
  2. Step 2: Convert to fraction form
    28,543.62/39,377.06 = 18,475.30/x
  3. Step 3: Cross multiply
    28,543.62x = 39,377.06 × 18,475.30
  4. Step 4: Simplify right side
    28,543.62x = 727,502,707.36
  5. Step 5: Solve for x
    x = 727,502,707.36/28,543.62
  6. Step 6: Final answer
    x = 25,487.40

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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.