Home / 31,117.41-42,941.79-16,969.95

Finding the Fourth Proportional to 31,117.41, 42,941.79 and 16,969.95

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Solution

The fourth proportional to 31,117.41, 42,941.79 and 16,969.95 is: 23,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,117.41 : 42,941.79 = 16,969.95 : x
  2. Step 2: Convert to fraction form
    31,117.41/42,941.79 = 16,969.95/x
  3. Step 3: Cross multiply
    31,117.41x = 42,941.79 × 16,969.95
  4. Step 4: Simplify right side
    31,117.41x = 728,720,029.21
  5. Step 5: Solve for x
    x = 728,720,029.21/31,117.41
  6. Step 6: Final answer
    x = 23,418.40

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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.