Home / 31,065.53-42,868.85-16,918.07

Finding the Fourth Proportional to 31,065.53, 42,868.85 and 16,918.07

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Solution

The fourth proportional to 31,065.53, 42,868.85 and 16,918.07 is: 23,346.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,065.53 : 42,868.85 = 16,918.07 : x
  2. Step 2: Convert to fraction form
    31,065.53/42,868.85 = 16,918.07/x
  3. Step 3: Cross multiply
    31,065.53x = 42,868.85 × 16,918.07
  4. Step 4: Simplify right side
    31,065.53x = 725,257,906.18
  5. Step 5: Solve for x
    x = 725,257,906.18/31,065.53
  6. Step 6: Final answer
    x = 23,346.07

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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.