Home / 25,725.90-38,588.85-12,603.90

Finding the Fourth Proportional to 25,725.90, 38,588.85 and 12,603.90

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Solution

The fourth proportional to 25,725.90, 38,588.85 and 12,603.90 is: 18,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,725.90 : 38,588.85 = 12,603.90 : x
  2. Step 2: Convert to fraction form
    25,725.90/38,588.85 = 12,603.90/x
  3. Step 3: Cross multiply
    25,725.90x = 38,588.85 × 12,603.90
  4. Step 4: Simplify right side
    25,725.90x = 486,370,006.52
  5. Step 5: Solve for x
    x = 486,370,006.52/25,725.90
  6. Step 6: Final answer
    x = 18,905.85

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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.