Home / 31,788.65-47,684.60-10,729.46

Finding the Fourth Proportional to 31,788.65, 47,684.60 and 10,729.46

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Solution

The fourth proportional to 31,788.65, 47,684.60 and 10,729.46 is: 16,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.65 : 47,684.60 = 10,729.46 : x
  2. Step 2: Convert to fraction form
    31,788.65/47,684.60 = 10,729.46/x
  3. Step 3: Cross multiply
    31,788.65x = 47,684.60 × 10,729.46
  4. Step 4: Simplify right side
    31,788.65x = 511,630,114.12
  5. Step 5: Solve for x
    x = 511,630,114.12/31,788.65
  6. Step 6: Final answer
    x = 16,094.74

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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.