Home / 28,750.30-43,113.62-10,987.52

Finding the Fourth Proportional to 28,750.30, 43,113.62 and 10,987.52

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Solution

The fourth proportional to 28,750.30, 43,113.62 and 10,987.52 is: 16,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.30 : 43,113.62 = 10,987.52 : x
  2. Step 2: Convert to fraction form
    28,750.30/43,113.62 = 10,987.52/x
  3. Step 3: Cross multiply
    28,750.30x = 43,113.62 × 10,987.52
  4. Step 4: Simplify right side
    28,750.30x = 473,711,762.02
  5. Step 5: Solve for x
    x = 473,711,762.02/28,750.30
  6. Step 6: Final answer
    x = 16,476.76

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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.