Home / 39,981.40-55,172.88-22,076.02

Finding the Fourth Proportional to 39,981.40, 55,172.88 and 22,076.02

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Solution

The fourth proportional to 39,981.40, 55,172.88 and 22,076.02 is: 30,464.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.40 : 55,172.88 = 22,076.02 : x
  2. Step 2: Convert to fraction form
    39,981.40/55,172.88 = 22,076.02/x
  3. Step 3: Cross multiply
    39,981.40x = 55,172.88 × 22,076.02
  4. Step 4: Simplify right side
    39,981.40x = 1,217,997,602.34
  5. Step 5: Solve for x
    x = 1,217,997,602.34/39,981.40
  6. Step 6: Final answer
    x = 30,464.11

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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.