Home / 38,178.40-57,269.04-10,478.56

Finding the Fourth Proportional to 38,178.40, 57,269.04 and 10,478.56

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Solution

The fourth proportional to 38,178.40, 57,269.04 and 10,478.56 is: 15,718.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178.40 : 57,269.04 = 10,478.56 : x
  2. Step 2: Convert to fraction form
    38,178.40/57,269.04 = 10,478.56/x
  3. Step 3: Cross multiply
    38,178.40x = 57,269.04 × 10,478.56
  4. Step 4: Simplify right side
    38,178.40x = 600,097,071.78
  5. Step 5: Solve for x
    x = 600,097,071.78/38,178.40
  6. Step 6: Final answer
    x = 15,718.24

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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.