Home / 40,387.16-55,735.59-22,239.82

Finding the Fourth Proportional to 40,387.16, 55,735.59 and 22,239.82

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Solution

The fourth proportional to 40,387.16, 55,735.59 and 22,239.82 is: 30,691.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,387.16 : 55,735.59 = 22,239.82 : x
  2. Step 2: Convert to fraction form
    40,387.16/55,735.59 = 22,239.82/x
  3. Step 3: Cross multiply
    40,387.16x = 55,735.59 × 22,239.82
  4. Step 4: Simplify right side
    40,387.16x = 1,239,549,328.75
  5. Step 5: Solve for x
    x = 1,239,549,328.75/40,387.16
  6. Step 6: Final answer
    x = 30,691.67

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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.