Home / 25,005.40-34,506.05-13,672.64

Finding the Fourth Proportional to 25,005.40, 34,506.05 and 13,672.64

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Solution

The fourth proportional to 25,005.40, 34,506.05 and 13,672.64 is: 18,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,005.40 : 34,506.05 = 13,672.64 : x
  2. Step 2: Convert to fraction form
    25,005.40/34,506.05 = 13,672.64/x
  3. Step 3: Cross multiply
    25,005.40x = 34,506.05 × 13,672.64
  4. Step 4: Simplify right side
    25,005.40x = 471,788,919.92
  5. Step 5: Solve for x
    x = 471,788,919.92/25,005.40
  6. Step 6: Final answer
    x = 18,867.48

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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.