Home / 40,225.56-55,512.16-22,320

Finding the Fourth Proportional to 40,225.56, 55,512.16 and 22,320

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Solution

The fourth proportional to 40,225.56, 55,512.16 and 22,320 is: 30,802.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,225.56 : 55,512.16 = 22,320 : x
  2. Step 2: Convert to fraction form
    40,225.56/55,512.16 = 22,320/x
  3. Step 3: Cross multiply
    40,225.56x = 55,512.16 × 22,320
  4. Step 4: Simplify right side
    40,225.56x = 1,239,031,411.20
  5. Step 5: Solve for x
    x = 1,239,031,411.20/40,225.56
  6. Step 6: Final answer
    x = 30,802.09

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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.