Home / 25,221.64-34,805.57-13,890.90

Finding the Fourth Proportional to 25,221.64, 34,805.57 and 13,890.90

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Solution

The fourth proportional to 25,221.64, 34,805.57 and 13,890.90 is: 19,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,221.64 : 34,805.57 = 13,890.90 : x
  2. Step 2: Convert to fraction form
    25,221.64/34,805.57 = 13,890.90/x
  3. Step 3: Cross multiply
    25,221.64x = 34,805.57 × 13,890.90
  4. Step 4: Simplify right side
    25,221.64x = 483,480,692.31
  5. Step 5: Solve for x
    x = 483,480,692.31/25,221.64
  6. Step 6: Final answer
    x = 19,169.28

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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.