Home / 43,147.26-64,728.27-19,775.70

Finding the Fourth Proportional to 43,147.26, 64,728.27 and 19,775.70

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Solution

The fourth proportional to 43,147.26, 64,728.27 and 19,775.70 is: 29,666.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,147.26 : 64,728.27 = 19,775.70 : x
  2. Step 2: Convert to fraction form
    43,147.26/64,728.27 = 19,775.70/x
  3. Step 3: Cross multiply
    43,147.26x = 64,728.27 × 19,775.70
  4. Step 4: Simplify right side
    43,147.26x = 1,280,046,849.04
  5. Step 5: Solve for x
    x = 1,280,046,849.04/43,147.26
  6. Step 6: Final answer
    x = 29,666.93

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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.