Home / 25,616.96-38,429.76-8,086.40

Finding the Fourth Proportional to 25,616.96, 38,429.76 and 8,086.40

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Solution

The fourth proportional to 25,616.96, 38,429.76 and 8,086.40 is: 12,130.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,616.96 : 38,429.76 = 8,086.40 : x
  2. Step 2: Convert to fraction form
    25,616.96/38,429.76 = 8,086.40/x
  3. Step 3: Cross multiply
    25,616.96x = 38,429.76 × 8,086.40
  4. Step 4: Simplify right side
    25,616.96x = 310,758,411.26
  5. Step 5: Solve for x
    x = 310,758,411.26/25,616.96
  6. Step 6: Final answer
    x = 12,130.96

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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.