Home / 22,261.15-33,338.72-12,881.40

Finding the Fourth Proportional to 22,261.15, 33,338.72 and 12,881.40

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Solution

The fourth proportional to 22,261.15, 33,338.72 and 12,881.40 is: 19,291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.15 : 33,338.72 = 12,881.40 : x
  2. Step 2: Convert to fraction form
    22,261.15/33,338.72 = 12,881.40/x
  3. Step 3: Cross multiply
    22,261.15x = 33,338.72 × 12,881.40
  4. Step 4: Simplify right side
    22,261.15x = 429,449,547.52
  5. Step 5: Solve for x
    x = 429,449,547.52/22,261.15
  6. Step 6: Final answer
    x = 19,291.43

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1.5x scale

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.