Home / 13,955.92-21,034.24-12,031.36

Finding the Fourth Proportional to 13,955.92, 21,034.24 and 12,031.36

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Solution

The fourth proportional to 13,955.92, 21,034.24 and 12,031.36 is: 18,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.92 : 21,034.24 = 12,031.36 : x
  2. Step 2: Convert to fraction form
    13,955.92/21,034.24 = 12,031.36/x
  3. Step 3: Cross multiply
    13,955.92x = 21,034.24 × 12,031.36
  4. Step 4: Simplify right side
    13,955.92x = 253,070,513.77
  5. Step 5: Solve for x
    x = 253,070,513.77/13,955.92
  6. Step 6: Final answer
    x = 18,133.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.