Home / 31,074.88-42,883.28-16,927.68

Finding the Fourth Proportional to 31,074.88, 42,883.28 and 16,927.68

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Solution

The fourth proportional to 31,074.88, 42,883.28 and 16,927.68 is: 23,360.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,074.88 : 42,883.28 = 16,927.68 : x
  2. Step 2: Convert to fraction form
    31,074.88/42,883.28 = 16,927.68/x
  3. Step 3: Cross multiply
    31,074.88x = 42,883.28 × 16,927.68
  4. Step 4: Simplify right side
    31,074.88x = 725,914,441.19
  5. Step 5: Solve for x
    x = 725,914,441.19/31,074.88
  6. Step 6: Final answer
    x = 23,360.17

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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.