Home / 31,862.94-43,970.78-17,715.90

Finding the Fourth Proportional to 31,862.94, 43,970.78 and 17,715.90

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Solution

The fourth proportional to 31,862.94, 43,970.78 and 17,715.90 is: 24,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,862.94 : 43,970.78 = 17,715.90 : x
  2. Step 2: Convert to fraction form
    31,862.94/43,970.78 = 17,715.90/x
  3. Step 3: Cross multiply
    31,862.94x = 43,970.78 × 17,715.90
  4. Step 4: Simplify right side
    31,862.94x = 778,981,941.40
  5. Step 5: Solve for x
    x = 778,981,941.40/31,862.94
  6. Step 6: Final answer
    x = 24,447.90

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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.