Home / 31,387.86-47,071.98-10,606.50

Finding the Fourth Proportional to 31,387.86, 47,071.98 and 10,606.50

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Solution

The fourth proportional to 31,387.86, 47,071.98 and 10,606.50 is: 15,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.86 : 47,071.98 = 10,606.50 : x
  2. Step 2: Convert to fraction form
    31,387.86/47,071.98 = 10,606.50/x
  3. Step 3: Cross multiply
    31,387.86x = 47,071.98 × 10,606.50
  4. Step 4: Simplify right side
    31,387.86x = 499,268,955.87
  5. Step 5: Solve for x
    x = 499,268,955.87/31,387.86
  6. Step 6: Final answer
    x = 15,906.44

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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.