Home / 38,295.04-57,443.28-11,999.20

Finding the Fourth Proportional to 38,295.04, 57,443.28 and 11,999.20

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Solution

The fourth proportional to 38,295.04, 57,443.28 and 11,999.20 is: 17,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,295.04 : 57,443.28 = 11,999.20 : x
  2. Step 2: Convert to fraction form
    38,295.04/57,443.28 = 11,999.20/x
  3. Step 3: Cross multiply
    38,295.04x = 57,443.28 × 11,999.20
  4. Step 4: Simplify right side
    38,295.04x = 689,273,405.38
  5. Step 5: Solve for x
    x = 689,273,405.38/38,295.04
  6. Step 6: Final answer
    x = 17,999.03

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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.