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Finding the Fourth Proportional to 38,340.40, 57,476.40 and 14,961.40

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Solution

The fourth proportional to 38,340.40, 57,476.40 and 14,961.40 is: 22,428.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,340.40 : 57,476.40 = 14,961.40 : x
  2. Step 2: Convert to fraction form
    38,340.40/57,476.40 = 14,961.40/x
  3. Step 3: Cross multiply
    38,340.40x = 57,476.40 × 14,961.40
  4. Step 4: Simplify right side
    38,340.40x = 859,927,410.96
  5. Step 5: Solve for x
    x = 859,927,410.96/38,340.40
  6. Step 6: Final answer
    x = 22,428.75

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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.