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Finding the Fourth Proportional to 22,120, 33,180 and 7,528

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Solution

The fourth proportional to 22,120, 33,180 and 7,528 is: 11,292

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,120 : 33,180 = 7,528 : x
  2. Step 2: Convert to fraction form
    22,120/33,180 = 7,528/x
  3. Step 3: Cross multiply
    22,120x = 33,180 × 7,528
  4. Step 4: Simplify right side
    22,120x = 249,779,040
  5. Step 5: Solve for x
    x = 249,779,040/22,120
  6. Step 6: Final answer
    x = 11,292

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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.