Home / 16,986.78-25,502.40-14,909.10

Finding the Fourth Proportional to 16,986.78, 25,502.40 and 14,909.10

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Solution

The fourth proportional to 16,986.78, 25,502.40 and 14,909.10 is: 22,383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.78 : 25,502.40 = 14,909.10 : x
  2. Step 2: Convert to fraction form
    16,986.78/25,502.40 = 14,909.10/x
  3. Step 3: Cross multiply
    16,986.78x = 25,502.40 × 14,909.10
  4. Step 4: Simplify right side
    16,986.78x = 380,217,831.84
  5. Step 5: Solve for x
    x = 380,217,831.84/16,986.78
  6. Step 6: Final answer
    x = 22,383.16

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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.