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Finding the Fourth Proportional to 18,038.62, 27,061.77 and 10,648.58

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Solution

The fourth proportional to 18,038.62, 27,061.77 and 10,648.58 is: 15,975.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,038.62 : 27,061.77 = 10,648.58 : x
  2. Step 2: Convert to fraction form
    18,038.62/27,061.77 = 10,648.58/x
  3. Step 3: Cross multiply
    18,038.62x = 27,061.77 × 10,648.58
  4. Step 4: Simplify right side
    18,038.62x = 288,169,422.79
  5. Step 5: Solve for x
    x = 288,169,422.79/18,038.62
  6. Step 6: Final answer
    x = 15,975.14

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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.