Home / 38,918.25-58,384.65-12,619.56

Finding the Fourth Proportional to 38,918.25, 58,384.65 and 12,619.56

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Solution

The fourth proportional to 38,918.25, 58,384.65 and 12,619.56 is: 18,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,918.25 : 58,384.65 = 12,619.56 : x
  2. Step 2: Convert to fraction form
    38,918.25/58,384.65 = 12,619.56/x
  3. Step 3: Cross multiply
    38,918.25x = 58,384.65 × 12,619.56
  4. Step 4: Simplify right side
    38,918.25x = 736,788,593.75
  5. Step 5: Solve for x
    x = 736,788,593.75/38,918.25
  6. Step 6: Final answer
    x = 18,931.70

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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.