Home / 31,722.17-43,776.50-18,293.40

Finding the Fourth Proportional to 31,722.17, 43,776.50 and 18,293.40

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Solution

The fourth proportional to 31,722.17, 43,776.50 and 18,293.40 is: 25,244.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,722.17 : 43,776.50 = 18,293.40 : x
  2. Step 2: Convert to fraction form
    31,722.17/43,776.50 = 18,293.40/x
  3. Step 3: Cross multiply
    31,722.17x = 43,776.50 × 18,293.40
  4. Step 4: Simplify right side
    31,722.17x = 800,820,933.63
  5. Step 5: Solve for x
    x = 800,820,933.63/31,722.17
  6. Step 6: Final answer
    x = 25,244.84

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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.