Home / 30,221.10-45,287.28-15,207.57

Finding the Fourth Proportional to 30,221.10, 45,287.28 and 15,207.57

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Solution

The fourth proportional to 30,221.10, 45,287.28 and 15,207.57 is: 22,789.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,221.10 : 45,287.28 = 15,207.57 : x
  2. Step 2: Convert to fraction form
    30,221.10/45,287.28 = 15,207.57/x
  3. Step 3: Cross multiply
    30,221.10x = 45,287.28 × 15,207.57
  4. Step 4: Simplify right side
    30,221.10x = 688,709,480.71
  5. Step 5: Solve for x
    x = 688,709,480.71/30,221.10
  6. Step 6: Final answer
    x = 22,789.03

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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.