Home / 38,759.50-58,139.70-12,464.20

Finding the Fourth Proportional to 38,759.50, 58,139.70 and 12,464.20

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Solution

The fourth proportional to 38,759.50, 58,139.70 and 12,464.20 is: 18,696.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,759.50 : 58,139.70 = 12,464.20 : x
  2. Step 2: Convert to fraction form
    38,759.50/58,139.70 = 12,464.20/x
  3. Step 3: Cross multiply
    38,759.50x = 58,139.70 × 12,464.20
  4. Step 4: Simplify right side
    38,759.50x = 724,664,848.74
  5. Step 5: Solve for x
    x = 724,664,848.74/38,759.50
  6. Step 6: Final answer
    x = 18,696.44

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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.