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Finding the Fourth Proportional to 27,646.50, 38,150.94 and 15,710.94

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Solution

The fourth proportional to 27,646.50, 38,150.94 and 15,710.94 is: 21,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,646.50 : 38,150.94 = 15,710.94 : x
  2. Step 2: Convert to fraction form
    27,646.50/38,150.94 = 15,710.94/x
  3. Step 3: Cross multiply
    27,646.50x = 38,150.94 × 15,710.94
  4. Step 4: Simplify right side
    27,646.50x = 599,387,129.28
  5. Step 5: Solve for x
    x = 599,387,129.28/27,646.50
  6. Step 6: Final answer
    x = 21,680.40

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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.