Home / 19,487.13-29,031.35-18,546.72

Finding the Fourth Proportional to 19,487.13, 29,031.35 and 18,546.72

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Solution

The fourth proportional to 19,487.13, 29,031.35 and 18,546.72 is: 27,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.13 : 29,031.35 = 18,546.72 : x
  2. Step 2: Convert to fraction form
    19,487.13/29,031.35 = 18,546.72/x
  3. Step 3: Cross multiply
    19,487.13x = 29,031.35 × 18,546.72
  4. Step 4: Simplify right side
    19,487.13x = 538,436,226.94
  5. Step 5: Solve for x
    x = 538,436,226.94/19,487.13
  6. Step 6: Final answer
    x = 27,630.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.