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Finding the Fourth Proportional to 28,003.60, 41,947.80 and 19,248.40

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Solution

The fourth proportional to 28,003.60, 41,947.80 and 19,248.40 is: 28,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.60 : 41,947.80 = 19,248.40 : x
  2. Step 2: Convert to fraction form
    28,003.60/41,947.80 = 19,248.40/x
  3. Step 3: Cross multiply
    28,003.60x = 41,947.80 × 19,248.40
  4. Step 4: Simplify right side
    28,003.60x = 807,428,033.52
  5. Step 5: Solve for x
    x = 807,428,033.52/28,003.60
  6. Step 6: Final answer
    x = 28,833.01

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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.