Home / 43,904.97-65,857.46-20,547.81

Finding the Fourth Proportional to 43,904.97, 65,857.46 and 20,547.81

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Solution

The fourth proportional to 43,904.97, 65,857.46 and 20,547.81 is: 30,821.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,904.97 : 65,857.46 = 20,547.81 : x
  2. Step 2: Convert to fraction form
    43,904.97/65,857.46 = 20,547.81/x
  3. Step 3: Cross multiply
    43,904.97x = 65,857.46 × 20,547.81
  4. Step 4: Simplify right side
    43,904.97x = 1,353,226,472.42
  5. Step 5: Solve for x
    x = 1,353,226,472.42/43,904.97
  6. Step 6: Final answer
    x = 30,821.72

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Similar ratio
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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.