Home / 25,677.28-38,515.80-8,148.48

Finding the Fourth Proportional to 25,677.28, 38,515.80 and 8,148.48

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Solution

The fourth proportional to 25,677.28, 38,515.80 and 8,148.48 is: 12,222.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,677.28 : 38,515.80 = 8,148.48 : x
  2. Step 2: Convert to fraction form
    25,677.28/38,515.80 = 8,148.48/x
  3. Step 3: Cross multiply
    25,677.28x = 38,515.80 × 8,148.48
  4. Step 4: Simplify right side
    25,677.28x = 313,845,225.98
  5. Step 5: Solve for x
    x = 313,845,225.98/25,677.28
  6. Step 6: Final answer
    x = 12,222.68

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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.