Home / 31,368.79-43,288.75-17,028.91

Finding the Fourth Proportional to 31,368.79, 43,288.75 and 17,028.91

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Solution

The fourth proportional to 31,368.79, 43,288.75 and 17,028.91 is: 23,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,368.79 : 43,288.75 = 17,028.91 : x
  2. Step 2: Convert to fraction form
    31,368.79/43,288.75 = 17,028.91/x
  3. Step 3: Cross multiply
    31,368.79x = 43,288.75 × 17,028.91
  4. Step 4: Simplify right side
    31,368.79x = 737,160,227.76
  5. Step 5: Solve for x
    x = 737,160,227.76/31,368.79
  6. Step 6: Final answer
    x = 23,499.80

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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.