Home / 47,870.06-71,809.88-18,312.75

Finding the Fourth Proportional to 47,870.06, 71,809.88 and 18,312.75

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Solution

The fourth proportional to 47,870.06, 71,809.88 and 18,312.75 is: 27,470.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,870.06 : 71,809.88 = 18,312.75 : x
  2. Step 2: Convert to fraction form
    47,870.06/71,809.88 = 18,312.75/x
  3. Step 3: Cross multiply
    47,870.06x = 71,809.88 × 18,312.75
  4. Step 4: Simplify right side
    47,870.06x = 1,315,036,288.41
  5. Step 5: Solve for x
    x = 1,315,036,288.41/47,870.06
  6. Step 6: Final answer
    x = 27,470.96

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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.