Home / 31,191.11-46,718.86-19,347.79

Finding the Fourth Proportional to 31,191.11, 46,718.86 and 19,347.79

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Solution

The fourth proportional to 31,191.11, 46,718.86 and 19,347.79 is: 28,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,191.11 : 46,718.86 = 19,347.79 : x
  2. Step 2: Convert to fraction form
    31,191.11/46,718.86 = 19,347.79/x
  3. Step 3: Cross multiply
    31,191.11x = 46,718.86 × 19,347.79
  4. Step 4: Simplify right side
    31,191.11x = 903,906,692.32
  5. Step 5: Solve for x
    x = 903,906,692.32/31,191.11
  6. Step 6: Final answer
    x = 28,979.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.