Home / 23,176.84-31,988.04-13,108.40

Finding the Fourth Proportional to 23,176.84, 31,988.04 and 13,108.40

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Solution

The fourth proportional to 23,176.84, 31,988.04 and 13,108.40 is: 18,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,176.84 : 31,988.04 = 13,108.40 : x
  2. Step 2: Convert to fraction form
    23,176.84/31,988.04 = 13,108.40/x
  3. Step 3: Cross multiply
    23,176.84x = 31,988.04 × 13,108.40
  4. Step 4: Simplify right side
    23,176.84x = 419,312,023.54
  5. Step 5: Solve for x
    x = 419,312,023.54/23,176.84
  6. Step 6: Final answer
    x = 18,091.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.