Home / 15,680.31-23,515.60-5,289.63

Finding the Fourth Proportional to 15,680.31, 23,515.60 and 5,289.63

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Solution

The fourth proportional to 15,680.31, 23,515.60 and 5,289.63 is: 7,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,680.31 : 23,515.60 = 5,289.63 : x
  2. Step 2: Convert to fraction form
    15,680.31/23,515.60 = 5,289.63/x
  3. Step 3: Cross multiply
    15,680.31x = 23,515.60 × 5,289.63
  4. Step 4: Simplify right side
    15,680.31x = 124,388,823.23
  5. Step 5: Solve for x
    x = 124,388,823.23/15,680.31
  6. Step 6: Final answer
    x = 7,932.80

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1.5x scale

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.