Home / 40,309.40-55,624.59-22,403.79

Finding the Fourth Proportional to 40,309.40, 55,624.59 and 22,403.79

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Solution

The fourth proportional to 40,309.40, 55,624.59 and 22,403.79 is: 30,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,309.40 : 55,624.59 = 22,403.79 : x
  2. Step 2: Convert to fraction form
    40,309.40/55,624.59 = 22,403.79/x
  3. Step 3: Cross multiply
    40,309.40x = 55,624.59 × 22,403.79
  4. Step 4: Simplify right side
    40,309.40x = 1,246,201,633.20
  5. Step 5: Solve for x
    x = 1,246,201,633.20/40,309.40
  6. Step 6: Final answer
    x = 30,915.91

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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.