Home / 47,555.89-71,334.65-17,987.65

Finding the Fourth Proportional to 47,555.89, 71,334.65 and 17,987.65

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Solution

The fourth proportional to 47,555.89, 71,334.65 and 17,987.65 is: 26,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,555.89 : 71,334.65 = 17,987.65 : x
  2. Step 2: Convert to fraction form
    47,555.89/71,334.65 = 17,987.65/x
  3. Step 3: Cross multiply
    47,555.89x = 71,334.65 × 17,987.65
  4. Step 4: Simplify right side
    47,555.89x = 1,283,142,627.13
  5. Step 5: Solve for x
    x = 1,283,142,627.13/47,555.89
  6. Step 6: Final answer
    x = 26,981.78

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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.