Home / 31,423.78-43,362.03-17,276.32

Finding the Fourth Proportional to 31,423.78, 43,362.03 and 17,276.32

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Solution

The fourth proportional to 31,423.78, 43,362.03 and 17,276.32 is: 23,839.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423.78 : 43,362.03 = 17,276.32 : x
  2. Step 2: Convert to fraction form
    31,423.78/43,362.03 = 17,276.32/x
  3. Step 3: Cross multiply
    31,423.78x = 43,362.03 × 17,276.32
  4. Step 4: Simplify right side
    31,423.78x = 749,136,306.13
  5. Step 5: Solve for x
    x = 749,136,306.13/31,423.78
  6. Step 6: Final answer
    x = 23,839.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.