Home / 31,756.46-43,824.12-18,328.28

Finding the Fourth Proportional to 31,756.46, 43,824.12 and 18,328.28

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Solution

The fourth proportional to 31,756.46, 43,824.12 and 18,328.28 is: 25,293.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,756.46 : 43,824.12 = 18,328.28 : x
  2. Step 2: Convert to fraction form
    31,756.46/43,824.12 = 18,328.28/x
  3. Step 3: Cross multiply
    31,756.46x = 43,824.12 × 18,328.28
  4. Step 4: Simplify right side
    31,756.46x = 803,220,742.11
  5. Step 5: Solve for x
    x = 803,220,742.11/31,756.46
  6. Step 6: Final answer
    x = 25,293.14

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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.