Home / 39,233.84-54,143.76-21,330.08

Finding the Fourth Proportional to 39,233.84, 54,143.76 and 21,330.08

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Solution

The fourth proportional to 39,233.84, 54,143.76 and 21,330.08 is: 29,436.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,233.84 : 54,143.76 = 21,330.08 : x
  2. Step 2: Convert to fraction form
    39,233.84/54,143.76 = 21,330.08/x
  3. Step 3: Cross multiply
    39,233.84x = 54,143.76 × 21,330.08
  4. Step 4: Simplify right side
    39,233.84x = 1,154,890,461.58
  5. Step 5: Solve for x
    x = 1,154,890,461.58/39,233.84
  6. Step 6: Final answer
    x = 29,436.08

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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.