Home / 31,320.04-43,227.18-18,744.76

Finding the Fourth Proportional to 31,320.04, 43,227.18 and 18,744.76

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Solution

The fourth proportional to 31,320.04, 43,227.18 and 18,744.76 is: 25,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.04 : 43,227.18 = 18,744.76 : x
  2. Step 2: Convert to fraction form
    31,320.04/43,227.18 = 18,744.76/x
  3. Step 3: Cross multiply
    31,320.04x = 43,227.18 × 18,744.76
  4. Step 4: Simplify right side
    31,320.04x = 810,283,114.58
  5. Step 5: Solve for x
    x = 810,283,114.58/31,320.04
  6. Step 6: Final answer
    x = 25,871.08

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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.