Home / 23,988.72-33,103.20-13,378.16

Finding the Fourth Proportional to 23,988.72, 33,103.20 and 13,378.16

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Solution

The fourth proportional to 23,988.72, 33,103.20 and 13,378.16 is: 18,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,988.72 : 33,103.20 = 13,378.16 : x
  2. Step 2: Convert to fraction form
    23,988.72/33,103.20 = 13,378.16/x
  3. Step 3: Cross multiply
    23,988.72x = 33,103.20 × 13,378.16
  4. Step 4: Simplify right side
    23,988.72x = 442,859,906.11
  5. Step 5: Solve for x
    x = 442,859,906.11/23,988.72
  6. Step 6: Final answer
    x = 18,461.17

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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.