Home / 38,356.80-57,530.72-10,279.28

Finding the Fourth Proportional to 38,356.80, 57,530.72 and 10,279.28

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Solution

The fourth proportional to 38,356.80, 57,530.72 and 10,279.28 is: 15,417.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,356.80 : 57,530.72 = 10,279.28 : x
  2. Step 2: Convert to fraction form
    38,356.80/57,530.72 = 10,279.28/x
  3. Step 3: Cross multiply
    38,356.80x = 57,530.72 × 10,279.28
  4. Step 4: Simplify right side
    38,356.80x = 591,374,379.48
  5. Step 5: Solve for x
    x = 591,374,379.48/38,356.80
  6. Step 6: Final answer
    x = 15,417.72

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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.