Home / 25,530.80-38,297.40-8,001.20

Finding the Fourth Proportional to 25,530.80, 38,297.40 and 8,001.20

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Solution

The fourth proportional to 25,530.80, 38,297.40 and 8,001.20 is: 12,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,530.80 : 38,297.40 = 8,001.20 : x
  2. Step 2: Convert to fraction form
    25,530.80/38,297.40 = 8,001.20/x
  3. Step 3: Cross multiply
    25,530.80x = 38,297.40 × 8,001.20
  4. Step 4: Simplify right side
    25,530.80x = 306,425,156.88
  5. Step 5: Solve for x
    x = 306,425,156.88/25,530.80
  6. Step 6: Final answer
    x = 12,002.18

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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.