Home / 28,126.43-42,182.25-8,400.30

Finding the Fourth Proportional to 28,126.43, 42,182.25 and 8,400.30

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Solution

The fourth proportional to 28,126.43, 42,182.25 and 8,400.30 is: 12,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.43 : 42,182.25 = 8,400.30 : x
  2. Step 2: Convert to fraction form
    28,126.43/42,182.25 = 8,400.30/x
  3. Step 3: Cross multiply
    28,126.43x = 42,182.25 × 8,400.30
  4. Step 4: Simplify right side
    28,126.43x = 354,343,554.68
  5. Step 5: Solve for x
    x = 354,343,554.68/28,126.43
  6. Step 6: Final answer
    x = 12,598.24

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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.