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Finding the Fourth Proportional to 27,735, 38,274.54 and 15,159.75

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Solution

The fourth proportional to 27,735, 38,274.54 and 15,159.75 is: 20,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735 : 38,274.54 = 15,159.75 : x
  2. Step 2: Convert to fraction form
    27,735/38,274.54 = 15,159.75/x
  3. Step 3: Cross multiply
    27,735x = 38,274.54 × 15,159.75
  4. Step 4: Simplify right side
    27,735x = 580,232,457.77
  5. Step 5: Solve for x
    x = 580,232,457.77/27,735
  6. Step 6: Final answer
    x = 20,920.59

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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.