Home / 34,780.80-52,187.40-18,159.60

Finding the Fourth Proportional to 34,780.80, 52,187.40 and 18,159.60

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Solution

The fourth proportional to 34,780.80, 52,187.40 and 18,159.60 is: 27,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,780.80 : 52,187.40 = 18,159.60 : x
  2. Step 2: Convert to fraction form
    34,780.80/52,187.40 = 18,159.60/x
  3. Step 3: Cross multiply
    34,780.80x = 52,187.40 × 18,159.60
  4. Step 4: Simplify right side
    34,780.80x = 947,702,309.04
  5. Step 5: Solve for x
    x = 947,702,309.04/34,780.80
  6. Step 6: Final answer
    x = 27,247.86

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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.