Home / 22,268.08-30,715.72-15,551.20

Finding the Fourth Proportional to 22,268.08, 30,715.72 and 15,551.20

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Solution

The fourth proportional to 22,268.08, 30,715.72 and 15,551.20 is: 21,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,268.08 : 30,715.72 = 15,551.20 : x
  2. Step 2: Convert to fraction form
    22,268.08/30,715.72 = 15,551.20/x
  3. Step 3: Cross multiply
    22,268.08x = 30,715.72 × 15,551.20
  4. Step 4: Simplify right side
    22,268.08x = 477,666,304.86
  5. Step 5: Solve for x
    x = 477,666,304.86/22,268.08
  6. Step 6: Final answer
    x = 21,450.72

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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.