Home / 31,752.40-43,821.18-18,325.84

Finding the Fourth Proportional to 31,752.40, 43,821.18 and 18,325.84

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Solution

The fourth proportional to 31,752.40, 43,821.18 and 18,325.84 is: 25,291.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,752.40 : 43,821.18 = 18,325.84 : x
  2. Step 2: Convert to fraction form
    31,752.40/43,821.18 = 18,325.84/x
  3. Step 3: Cross multiply
    31,752.40x = 43,821.18 × 18,325.84
  4. Step 4: Simplify right side
    31,752.40x = 803,059,933.29
  5. Step 5: Solve for x
    x = 803,059,933.29/31,752.40
  6. Step 6: Final answer
    x = 25,291.31

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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.