Home / 28,987.92-43,490.55-16,667.28

Finding the Fourth Proportional to 28,987.92, 43,490.55 and 16,667.28

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Solution

The fourth proportional to 28,987.92, 43,490.55 and 16,667.28 is: 25,005.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.92 : 43,490.55 = 16,667.28 : x
  2. Step 2: Convert to fraction form
    28,987.92/43,490.55 = 16,667.28/x
  3. Step 3: Cross multiply
    28,987.92x = 43,490.55 × 16,667.28
  4. Step 4: Simplify right side
    28,987.92x = 724,869,174.20
  5. Step 5: Solve for x
    x = 724,869,174.20/28,987.92
  6. Step 6: Final answer
    x = 25,005.91

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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.