Home / 15,631.75-23,447.63-4,687.75

Finding the Fourth Proportional to 15,631.75, 23,447.63 and 4,687.75

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Solution

The fourth proportional to 15,631.75, 23,447.63 and 4,687.75 is: 7,031.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.75 : 23,447.63 = 4,687.75 : x
  2. Step 2: Convert to fraction form
    15,631.75/23,447.63 = 4,687.75/x
  3. Step 3: Cross multiply
    15,631.75x = 23,447.63 × 4,687.75
  4. Step 4: Simplify right side
    15,631.75x = 109,916,627.53
  5. Step 5: Solve for x
    x = 109,916,627.53/15,631.75
  6. Step 6: Final answer
    x = 7,031.63

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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.