Home / 31,795.29-47,693.95-15,991.70

Finding the Fourth Proportional to 31,795.29, 47,693.95 and 15,991.70

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Solution

The fourth proportional to 31,795.29, 47,693.95 and 15,991.70 is: 23,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,795.29 : 47,693.95 = 15,991.70 : x
  2. Step 2: Convert to fraction form
    31,795.29/47,693.95 = 15,991.70/x
  3. Step 3: Cross multiply
    31,795.29x = 47,693.95 × 15,991.70
  4. Step 4: Simplify right side
    31,795.29x = 762,707,106.74
  5. Step 5: Solve for x
    x = 762,707,106.74/31,795.29
  6. Step 6: Final answer
    x = 23,988.05

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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.