Home / 31,555.20-43,541.10-17,941.80

Finding the Fourth Proportional to 31,555.20, 43,541.10 and 17,941.80

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Solution

The fourth proportional to 31,555.20, 43,541.10 and 17,941.80 is: 24,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,555.20 : 43,541.10 = 17,941.80 : x
  2. Step 2: Convert to fraction form
    31,555.20/43,541.10 = 17,941.80/x
  3. Step 3: Cross multiply
    31,555.20x = 43,541.10 × 17,941.80
  4. Step 4: Simplify right side
    31,555.20x = 781,205,707.98
  5. Step 5: Solve for x
    x = 781,205,707.98/31,555.20
  6. Step 6: Final answer
    x = 24,756.80

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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.