Home / 29,287.20-43,930.80-19,437.60

Finding the Fourth Proportional to 29,287.20, 43,930.80 and 19,437.60

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Solution

The fourth proportional to 29,287.20, 43,930.80 and 19,437.60 is: 29,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,287.20 : 43,930.80 = 19,437.60 : x
  2. Step 2: Convert to fraction form
    29,287.20/43,930.80 = 19,437.60/x
  3. Step 3: Cross multiply
    29,287.20x = 43,930.80 × 19,437.60
  4. Step 4: Simplify right side
    29,287.20x = 853,909,318.08
  5. Step 5: Solve for x
    x = 853,909,318.08/29,287.20
  6. Step 6: Final answer
    x = 29,156.40

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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.