Home / 47,870.20-71,805.30-18,272.80

Finding the Fourth Proportional to 47,870.20, 71,805.30 and 18,272.80

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Solution

The fourth proportional to 47,870.20, 71,805.30 and 18,272.80 is: 27,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,870.20 : 71,805.30 = 18,272.80 : x
  2. Step 2: Convert to fraction form
    47,870.20/71,805.30 = 18,272.80/x
  3. Step 3: Cross multiply
    47,870.20x = 71,805.30 × 18,272.80
  4. Step 4: Simplify right side
    47,870.20x = 1,312,083,885.84
  5. Step 5: Solve for x
    x = 1,312,083,885.84/47,870.20
  6. Step 6: Final answer
    x = 27,409.20

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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.