Home / 40,281.36-60,369.48-20,543.28

Finding the Fourth Proportional to 40,281.36, 60,369.48 and 20,543.28

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Solution

The fourth proportional to 40,281.36, 60,369.48 and 20,543.28 is: 30,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,281.36 : 60,369.48 = 20,543.28 : x
  2. Step 2: Convert to fraction form
    40,281.36/60,369.48 = 20,543.28/x
  3. Step 3: Cross multiply
    40,281.36x = 60,369.48 × 20,543.28
  4. Step 4: Simplify right side
    40,281.36x = 1,240,187,131.09
  5. Step 5: Solve for x
    x = 1,240,187,131.09/40,281.36
  6. Step 6: Final answer
    x = 30,788.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.