Home / 31,288.77-43,178.27-16,948.28

Finding the Fourth Proportional to 31,288.77, 43,178.27 and 16,948.28

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Solution

The fourth proportional to 31,288.77, 43,178.27 and 16,948.28 is: 23,388.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,288.77 : 43,178.27 = 16,948.28 : x
  2. Step 2: Convert to fraction form
    31,288.77/43,178.27 = 16,948.28/x
  3. Step 3: Cross multiply
    31,288.77x = 43,178.27 × 16,948.28
  4. Step 4: Simplify right side
    31,288.77x = 731,797,409.88
  5. Step 5: Solve for x
    x = 731,797,409.88/31,288.77
  6. Step 6: Final answer
    x = 23,388.50

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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.