Home / 20,488.68-30,754.08-10,625.31

Finding the Fourth Proportional to 20,488.68, 30,754.08 and 10,625.31

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Solution

The fourth proportional to 20,488.68, 30,754.08 and 10,625.31 is: 15,948.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.68 : 30,754.08 = 10,625.31 : x
  2. Step 2: Convert to fraction form
    20,488.68/30,754.08 = 10,625.31/x
  3. Step 3: Cross multiply
    20,488.68x = 30,754.08 × 10,625.31
  4. Step 4: Simplify right side
    20,488.68x = 326,771,633.76
  5. Step 5: Solve for x
    x = 326,771,633.76/20,488.68
  6. Step 6: Final answer
    x = 15,948.89

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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.