Home / 25,343.88-38,005.92-8,700.72

Finding the Fourth Proportional to 25,343.88, 38,005.92 and 8,700.72

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Solution

The fourth proportional to 25,343.88, 38,005.92 and 8,700.72 is: 13,047.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,343.88 : 38,005.92 = 8,700.72 : x
  2. Step 2: Convert to fraction form
    25,343.88/38,005.92 = 8,700.72/x
  3. Step 3: Cross multiply
    25,343.88x = 38,005.92 × 8,700.72
  4. Step 4: Simplify right side
    25,343.88x = 330,678,868.26
  5. Step 5: Solve for x
    x = 330,678,868.26/25,343.88
  6. Step 6: Final answer
    x = 13,047.68

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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.