Home / 28,544.12-39,377.75-18,475.80

Finding the Fourth Proportional to 28,544.12, 39,377.75 and 18,475.80

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Solution

The fourth proportional to 28,544.12, 39,377.75 and 18,475.80 is: 25,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.12 : 39,377.75 = 18,475.80 : x
  2. Step 2: Convert to fraction form
    28,544.12/39,377.75 = 18,475.80/x
  3. Step 3: Cross multiply
    28,544.12x = 39,377.75 × 18,475.80
  4. Step 4: Simplify right side
    28,544.12x = 727,535,433.45
  5. Step 5: Solve for x
    x = 727,535,433.45/28,544.12
  6. Step 6: Final answer
    x = 25,488.10

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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.