Home / 53,947.72-80,921.46-18,897.40

Finding the Fourth Proportional to 53,947.72, 80,921.46 and 18,897.40

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Solution

The fourth proportional to 53,947.72, 80,921.46 and 18,897.40 is: 28,346.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,947.72 : 80,921.46 = 18,897.40 : x
  2. Step 2: Convert to fraction form
    53,947.72/80,921.46 = 18,897.40/x
  3. Step 3: Cross multiply
    53,947.72x = 80,921.46 × 18,897.40
  4. Step 4: Simplify right side
    53,947.72x = 1,529,205,198.20
  5. Step 5: Solve for x
    x = 1,529,205,198.20/53,947.72
  6. Step 6: Final answer
    x = 28,346.06

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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.