Home / 28,875.38-43,330.34-12,459.38

Finding the Fourth Proportional to 28,875.38, 43,330.34 and 12,459.38

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Solution

The fourth proportional to 28,875.38, 43,330.34 and 12,459.38 is: 18,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.38 : 43,330.34 = 12,459.38 : x
  2. Step 2: Convert to fraction form
    28,875.38/43,330.34 = 12,459.38/x
  3. Step 3: Cross multiply
    28,875.38x = 43,330.34 × 12,459.38
  4. Step 4: Simplify right side
    28,875.38x = 539,868,986.09
  5. Step 5: Solve for x
    x = 539,868,986.09/28,875.38
  6. Step 6: Final answer
    x = 18,696.52

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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.