Home / 28,044.89-42,053.28-9,318.36

Finding the Fourth Proportional to 28,044.89, 42,053.28 and 9,318.36

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Solution

The fourth proportional to 28,044.89, 42,053.28 and 9,318.36 is: 13,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,044.89 : 42,053.28 = 9,318.36 : x
  2. Step 2: Convert to fraction form
    28,044.89/42,053.28 = 9,318.36/x
  3. Step 3: Cross multiply
    28,044.89x = 42,053.28 × 9,318.36
  4. Step 4: Simplify right side
    28,044.89x = 391,867,602.22
  5. Step 5: Solve for x
    x = 391,867,602.22/28,044.89
  6. Step 6: Final answer
    x = 13,972.87

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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.