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Finding the Fourth Proportional to 39,258, 58,912.92 and 18,483.12

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Solution

The fourth proportional to 39,258, 58,912.92 and 18,483.12 is: 27,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,258 : 58,912.92 = 18,483.12 : x
  2. Step 2: Convert to fraction form
    39,258/58,912.92 = 18,483.12/x
  3. Step 3: Cross multiply
    39,258x = 58,912.92 × 18,483.12
  4. Step 4: Simplify right side
    39,258x = 1,088,894,569.91
  5. Step 5: Solve for x
    x = 1,088,894,569.91/39,258
  6. Step 6: Final answer
    x = 27,736.88

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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.