Home / 13,031.97-19,547.68-3,171.30

Finding the Fourth Proportional to 13,031.97, 19,547.68 and 3,171.30

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Solution

The fourth proportional to 13,031.97, 19,547.68 and 3,171.30 is: 4,756.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.97 : 19,547.68 = 3,171.30 : x
  2. Step 2: Convert to fraction form
    13,031.97/19,547.68 = 3,171.30/x
  3. Step 3: Cross multiply
    13,031.97x = 19,547.68 × 3,171.30
  4. Step 4: Simplify right side
    13,031.97x = 61,991,557.58
  5. Step 5: Solve for x
    x = 61,991,557.58/13,031.97
  6. Step 6: Final answer
    x = 4,756.88

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1.5x scale

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.