Home / 31,480.74-43,457.04-22,512.69

Finding the Fourth Proportional to 31,480.74, 43,457.04 and 22,512.69

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Solution

The fourth proportional to 31,480.74, 43,457.04 and 22,512.69 is: 31,077.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.74 : 43,457.04 = 22,512.69 : x
  2. Step 2: Convert to fraction form
    31,480.74/43,457.04 = 22,512.69/x
  3. Step 3: Cross multiply
    31,480.74x = 43,457.04 × 22,512.69
  4. Step 4: Simplify right side
    31,480.74x = 978,334,869.84
  5. Step 5: Solve for x
    x = 978,334,869.84/31,480.74
  6. Step 6: Final answer
    x = 31,077.25

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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.