Home / 38,284.98-57,428.28-11,989.14

Finding the Fourth Proportional to 38,284.98, 57,428.28 and 11,989.14

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Solution

The fourth proportional to 38,284.98, 57,428.28 and 11,989.14 is: 17,983.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,284.98 : 57,428.28 = 11,989.14 : x
  2. Step 2: Convert to fraction form
    38,284.98/57,428.28 = 11,989.14/x
  3. Step 3: Cross multiply
    38,284.98x = 57,428.28 × 11,989.14
  4. Step 4: Simplify right side
    38,284.98x = 688,515,688.88
  5. Step 5: Solve for x
    x = 688,515,688.88/38,284.98
  6. Step 6: Final answer
    x = 17,983.96

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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.