Home / 31,270.12-43,148.76-17,840.60

Finding the Fourth Proportional to 31,270.12, 43,148.76 and 17,840.60

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Solution

The fourth proportional to 31,270.12, 43,148.76 and 17,840.60 is: 24,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.12 : 43,148.76 = 17,840.60 : x
  2. Step 2: Convert to fraction form
    31,270.12/43,148.76 = 17,840.60/x
  3. Step 3: Cross multiply
    31,270.12x = 43,148.76 × 17,840.60
  4. Step 4: Simplify right side
    31,270.12x = 769,799,767.66
  5. Step 5: Solve for x
    x = 769,799,767.66/31,270.12
  6. Step 6: Final answer
    x = 24,617.74

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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.