Home / 31,574.52-43,562.70-20,966.28

Finding the Fourth Proportional to 31,574.52, 43,562.70 and 20,966.28

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Solution

The fourth proportional to 31,574.52, 43,562.70 and 20,966.28 is: 28,926.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,574.52 : 43,562.70 = 20,966.28 : x
  2. Step 2: Convert to fraction form
    31,574.52/43,562.70 = 20,966.28/x
  3. Step 3: Cross multiply
    31,574.52x = 43,562.70 × 20,966.28
  4. Step 4: Simplify right side
    31,574.52x = 913,347,765.76
  5. Step 5: Solve for x
    x = 913,347,765.76/31,574.52
  6. Step 6: Final answer
    x = 28,926.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.