Home / 37,956.78-56,929.32-12,991.10

Finding the Fourth Proportional to 37,956.78, 56,929.32 and 12,991.10

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Solution

The fourth proportional to 37,956.78, 56,929.32 and 12,991.10 is: 19,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,956.78 : 56,929.32 = 12,991.10 : x
  2. Step 2: Convert to fraction form
    37,956.78/56,929.32 = 12,991.10/x
  3. Step 3: Cross multiply
    37,956.78x = 56,929.32 × 12,991.10
  4. Step 4: Simplify right side
    37,956.78x = 739,574,489.05
  5. Step 5: Solve for x
    x = 739,574,489.05/37,956.78
  6. Step 6: Final answer
    x = 19,484.65

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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.