Home / 20,008.28-30,031.25-10,154.63

Finding the Fourth Proportional to 20,008.28, 30,031.25 and 10,154.63

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Solution

The fourth proportional to 20,008.28, 30,031.25 and 10,154.63 is: 15,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.28 : 30,031.25 = 10,154.63 : x
  2. Step 2: Convert to fraction form
    20,008.28/30,031.25 = 10,154.63/x
  3. Step 3: Cross multiply
    20,008.28x = 30,031.25 × 10,154.63
  4. Step 4: Simplify right side
    20,008.28x = 304,956,031.26
  5. Step 5: Solve for x
    x = 304,956,031.26/20,008.28
  6. Step 6: Final answer
    x = 15,241.50

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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.