Home / 19,820.03-27,352.28-11,320.34

Finding the Fourth Proportional to 19,820.03, 27,352.28 and 11,320.34

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Solution

The fourth proportional to 19,820.03, 27,352.28 and 11,320.34 is: 15,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.03 : 27,352.28 = 11,320.34 : x
  2. Step 2: Convert to fraction form
    19,820.03/27,352.28 = 11,320.34/x
  3. Step 3: Cross multiply
    19,820.03x = 27,352.28 × 11,320.34
  4. Step 4: Simplify right side
    19,820.03x = 309,636,916.01
  5. Step 5: Solve for x
    x = 309,636,916.01/19,820.03
  6. Step 6: Final answer
    x = 15,622.43

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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.