Home / 40,279-60,431.34-16,899.16

Finding the Fourth Proportional to 40,279, 60,431.34 and 16,899.16

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Solution

The fourth proportional to 40,279, 60,431.34 and 16,899.16 is: 25,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,279 : 60,431.34 = 16,899.16 : x
  2. Step 2: Convert to fraction form
    40,279/60,431.34 = 16,899.16/x
  3. Step 3: Cross multiply
    40,279x = 60,431.34 × 16,899.16
  4. Step 4: Simplify right side
    40,279x = 1,021,238,883.67
  5. Step 5: Solve for x
    x = 1,021,238,883.67/40,279
  6. Step 6: Final answer
    x = 25,354.13

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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.