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Finding the Fourth Proportional to 22,543.84, 33,888.56 and 20,920.48

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Solution

The fourth proportional to 22,543.84, 33,888.56 and 20,920.48 is: 31,448.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,543.84 : 33,888.56 = 20,920.48 : x
  2. Step 2: Convert to fraction form
    22,543.84/33,888.56 = 20,920.48/x
  3. Step 3: Cross multiply
    22,543.84x = 33,888.56 × 20,920.48
  4. Step 4: Simplify right side
    22,543.84x = 708,964,941.71
  5. Step 5: Solve for x
    x = 708,964,941.71/22,543.84
  6. Step 6: Final answer
    x = 31,448.28

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1.5x scale

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.