Home / 38,647.18-57,972.28-11,995.95

Finding the Fourth Proportional to 38,647.18, 57,972.28 and 11,995.95

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Solution

The fourth proportional to 38,647.18, 57,972.28 and 11,995.95 is: 17,994.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,647.18 : 57,972.28 = 11,995.95 : x
  2. Step 2: Convert to fraction form
    38,647.18/57,972.28 = 11,995.95/x
  3. Step 3: Cross multiply
    38,647.18x = 57,972.28 × 11,995.95
  4. Step 4: Simplify right side
    38,647.18x = 695,432,489.81
  5. Step 5: Solve for x
    x = 695,432,489.81/38,647.18
  6. Step 6: Final answer
    x = 17,994.39

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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.