Home / 38,279.12-57,427.84-18,534.60

Finding the Fourth Proportional to 38,279.12, 57,427.84 and 18,534.60

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Solution

The fourth proportional to 38,279.12, 57,427.84 and 18,534.60 is: 27,806.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,279.12 : 57,427.84 = 18,534.60 : x
  2. Step 2: Convert to fraction form
    38,279.12/57,427.84 = 18,534.60/x
  3. Step 3: Cross multiply
    38,279.12x = 57,427.84 × 18,534.60
  4. Step 4: Simplify right side
    38,279.12x = 1,064,402,043.26
  5. Step 5: Solve for x
    x = 1,064,402,043.26/38,279.12
  6. Step 6: Final answer
    x = 27,806.34

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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.