Home / 38,619.56-57,925.70-12,319.68

Finding the Fourth Proportional to 38,619.56, 57,925.70 and 12,319.68

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Solution

The fourth proportional to 38,619.56, 57,925.70 and 12,319.68 is: 18,478.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,619.56 : 57,925.70 = 12,319.68 : x
  2. Step 2: Convert to fraction form
    38,619.56/57,925.70 = 12,319.68/x
  3. Step 3: Cross multiply
    38,619.56x = 57,925.70 × 12,319.68
  4. Step 4: Simplify right side
    38,619.56x = 713,626,087.78
  5. Step 5: Solve for x
    x = 713,626,087.78/38,619.56
  6. Step 6: Final answer
    x = 18,478.36

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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.