Home / 37,947.52-56,930.16-12,987.84

Finding the Fourth Proportional to 37,947.52, 56,930.16 and 12,987.84

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Solution

The fourth proportional to 37,947.52, 56,930.16 and 12,987.84 is: 19,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,947.52 : 56,930.16 = 12,987.84 : x
  2. Step 2: Convert to fraction form
    37,947.52/56,930.16 = 12,987.84/x
  3. Step 3: Cross multiply
    37,947.52x = 56,930.16 × 12,987.84
  4. Step 4: Simplify right side
    37,947.52x = 739,399,809.25
  5. Step 5: Solve for x
    x = 739,399,809.25/37,947.52
  6. Step 6: Final answer
    x = 19,484.80

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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.