Home / 20,522.22-28,320.29-11,569.74

Finding the Fourth Proportional to 20,522.22, 28,320.29 and 11,569.74

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Solution

The fourth proportional to 20,522.22, 28,320.29 and 11,569.74 is: 15,966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.22 : 28,320.29 = 11,569.74 : x
  2. Step 2: Convert to fraction form
    20,522.22/28,320.29 = 11,569.74/x
  3. Step 3: Cross multiply
    20,522.22x = 28,320.29 × 11,569.74
  4. Step 4: Simplify right side
    20,522.22x = 327,658,314.75
  5. Step 5: Solve for x
    x = 327,658,314.75/20,522.22
  6. Step 6: Final answer
    x = 15,966.02

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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.