Home / 37,947.78-56,902.84-12,980.76

Finding the Fourth Proportional to 37,947.78, 56,902.84 and 12,980.76

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Solution

The fourth proportional to 37,947.78, 56,902.84 and 12,980.76 is: 19,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,947.78 : 56,902.84 = 12,980.76 : x
  2. Step 2: Convert to fraction form
    37,947.78/56,902.84 = 12,980.76/x
  3. Step 3: Cross multiply
    37,947.78x = 56,902.84 × 12,980.76
  4. Step 4: Simplify right side
    37,947.78x = 738,642,109.36
  5. Step 5: Solve for x
    x = 738,642,109.36/37,947.78
  6. Step 6: Final answer
    x = 19,464.70

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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.