Home / 31,626.04-43,643.64-17,478.76

Finding the Fourth Proportional to 31,626.04, 43,643.64 and 17,478.76

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Solution

The fourth proportional to 31,626.04, 43,643.64 and 17,478.76 is: 24,120.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,626.04 : 43,643.64 = 17,478.76 : x
  2. Step 2: Convert to fraction form
    31,626.04/43,643.64 = 17,478.76/x
  3. Step 3: Cross multiply
    31,626.04x = 43,643.64 × 17,478.76
  4. Step 4: Simplify right side
    31,626.04x = 762,836,709.09
  5. Step 5: Solve for x
    x = 762,836,709.09/31,626.04
  6. Step 6: Final answer
    x = 24,120.53

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Half scale
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Double scale
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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.