Home / 25,653.40-38,480.10-8,123.20

Finding the Fourth Proportional to 25,653.40, 38,480.10 and 8,123.20

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Solution

The fourth proportional to 25,653.40, 38,480.10 and 8,123.20 is: 12,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653.40 : 38,480.10 = 8,123.20 : x
  2. Step 2: Convert to fraction form
    25,653.40/38,480.10 = 8,123.20/x
  3. Step 3: Cross multiply
    25,653.40x = 38,480.10 × 8,123.20
  4. Step 4: Simplify right side
    25,653.40x = 312,581,548.32
  5. Step 5: Solve for x
    x = 312,581,548.32/25,653.40
  6. Step 6: Final answer
    x = 12,184.80

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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.