Home / 38,778.20-58,172.80-12,476.82

Finding the Fourth Proportional to 38,778.20, 58,172.80 and 12,476.82

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Solution

The fourth proportional to 38,778.20, 58,172.80 and 12,476.82 is: 18,717.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,778.20 : 58,172.80 = 12,476.82 : x
  2. Step 2: Convert to fraction form
    38,778.20/58,172.80 = 12,476.82/x
  3. Step 3: Cross multiply
    38,778.20x = 58,172.80 × 12,476.82
  4. Step 4: Simplify right side
    38,778.20x = 725,811,554.50
  5. Step 5: Solve for x
    x = 725,811,554.50/38,778.20
  6. Step 6: Final answer
    x = 18,717.00

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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.