Home / 25,555.49-38,338.08-8,920.28

Finding the Fourth Proportional to 25,555.49, 38,338.08 and 8,920.28

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Solution

The fourth proportional to 25,555.49, 38,338.08 and 8,920.28 is: 13,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,555.49 : 38,338.08 = 8,920.28 : x
  2. Step 2: Convert to fraction form
    25,555.49/38,338.08 = 8,920.28/x
  3. Step 3: Cross multiply
    25,555.49x = 38,338.08 × 8,920.28
  4. Step 4: Simplify right side
    25,555.49x = 341,986,408.26
  5. Step 5: Solve for x
    x = 341,986,408.26/25,555.49
  6. Step 6: Final answer
    x = 13,382.11

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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.