Home / 31,376.87-47,054.86-12,652.07

Finding the Fourth Proportional to 31,376.87, 47,054.86 and 12,652.07

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Solution

The fourth proportional to 31,376.87, 47,054.86 and 12,652.07 is: 18,973.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,376.87 : 47,054.86 = 12,652.07 : x
  2. Step 2: Convert to fraction form
    31,376.87/47,054.86 = 12,652.07/x
  3. Step 3: Cross multiply
    31,376.87x = 47,054.86 × 12,652.07
  4. Step 4: Simplify right side
    31,376.87x = 595,341,382.56
  5. Step 5: Solve for x
    x = 595,341,382.56/31,376.87
  6. Step 6: Final answer
    x = 18,973.89

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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.