Home / 29,271.87-40,394.97-15,842.81

Finding the Fourth Proportional to 29,271.87, 40,394.97 and 15,842.81

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Solution

The fourth proportional to 29,271.87, 40,394.97 and 15,842.81 is: 21,862.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,271.87 : 40,394.97 = 15,842.81 : x
  2. Step 2: Convert to fraction form
    29,271.87/40,394.97 = 15,842.81/x
  3. Step 3: Cross multiply
    29,271.87x = 40,394.97 × 15,842.81
  4. Step 4: Simplify right side
    29,271.87x = 639,969,834.67
  5. Step 5: Solve for x
    x = 639,969,834.67/29,271.87
  6. Step 6: Final answer
    x = 21,862.96

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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.