Home / 55,423.62-83,085.75-20,338.74

Finding the Fourth Proportional to 55,423.62, 83,085.75 and 20,338.74

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Solution

The fourth proportional to 55,423.62, 83,085.75 and 20,338.74 is: 30,489.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,423.62 : 83,085.75 = 20,338.74 : x
  2. Step 2: Convert to fraction form
    55,423.62/83,085.75 = 20,338.74/x
  3. Step 3: Cross multiply
    55,423.62x = 83,085.75 × 20,338.74
  4. Step 4: Simplify right side
    55,423.62x = 1,689,859,466.96
  5. Step 5: Solve for x
    x = 1,689,859,466.96/55,423.62
  6. Step 6: Final answer
    x = 30,489.88

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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.