Home / 22,328.56-30,802.20-15,255.28

Finding the Fourth Proportional to 22,328.56, 30,802.20 and 15,255.28

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Solution

The fourth proportional to 22,328.56, 30,802.20 and 15,255.28 is: 21,044.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,328.56 : 30,802.20 = 15,255.28 : x
  2. Step 2: Convert to fraction form
    22,328.56/30,802.20 = 15,255.28/x
  3. Step 3: Cross multiply
    22,328.56x = 30,802.20 × 15,255.28
  4. Step 4: Simplify right side
    22,328.56x = 469,896,185.62
  5. Step 5: Solve for x
    x = 469,896,185.62/22,328.56
  6. Step 6: Final answer
    x = 21,044.63

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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.