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Finding the Fourth Proportional to 22,647.68, 33,938.71 and 12,765.93

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Solution

The fourth proportional to 22,647.68, 33,938.71 and 12,765.93 is: 19,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,647.68 : 33,938.71 = 12,765.93 : x
  2. Step 2: Convert to fraction form
    22,647.68/33,938.71 = 12,765.93/x
  3. Step 3: Cross multiply
    22,647.68x = 33,938.71 × 12,765.93
  4. Step 4: Simplify right side
    22,647.68x = 433,259,132.32
  5. Step 5: Solve for x
    x = 433,259,132.32/22,647.68
  6. Step 6: Final answer
    x = 19,130.40

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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.