Home / 30,149.12-45,207.88-10,423.06

Finding the Fourth Proportional to 30,149.12, 45,207.88 and 10,423.06

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Solution

The fourth proportional to 30,149.12, 45,207.88 and 10,423.06 is: 15,629.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.12 : 45,207.88 = 10,423.06 : x
  2. Step 2: Convert to fraction form
    30,149.12/45,207.88 = 10,423.06/x
  3. Step 3: Cross multiply
    30,149.12x = 45,207.88 × 10,423.06
  4. Step 4: Simplify right side
    30,149.12x = 471,204,445.71
  5. Step 5: Solve for x
    x = 471,204,445.71/30,149.12
  6. Step 6: Final answer
    x = 15,629.13

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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.