Home / 25,625.70-38,438.55-15,128.10

Finding the Fourth Proportional to 25,625.70, 38,438.55 and 15,128.10

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Solution

The fourth proportional to 25,625.70, 38,438.55 and 15,128.10 is: 22,692.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,625.70 : 38,438.55 = 15,128.10 : x
  2. Step 2: Convert to fraction form
    25,625.70/38,438.55 = 15,128.10/x
  3. Step 3: Cross multiply
    25,625.70x = 38,438.55 × 15,128.10
  4. Step 4: Simplify right side
    25,625.70x = 581,502,228.26
  5. Step 5: Solve for x
    x = 581,502,228.26/25,625.70
  6. Step 6: Final answer
    x = 22,692.15

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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.