Home / 31,311.61-43,208.40-17,880.23

Finding the Fourth Proportional to 31,311.61, 43,208.40 and 17,880.23

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Solution

The fourth proportional to 31,311.61, 43,208.40 and 17,880.23 is: 24,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311.61 : 43,208.40 = 17,880.23 : x
  2. Step 2: Convert to fraction form
    31,311.61/43,208.40 = 17,880.23/x
  3. Step 3: Cross multiply
    31,311.61x = 43,208.40 × 17,880.23
  4. Step 4: Simplify right side
    31,311.61x = 772,576,305.00
  5. Step 5: Solve for x
    x = 772,576,305.00/31,311.61
  6. Step 6: Final answer
    x = 24,673.80

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Double scale
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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.