Home / 31,915.62-47,873.43-9,728.51

Finding the Fourth Proportional to 31,915.62, 47,873.43 and 9,728.51

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Solution

The fourth proportional to 31,915.62, 47,873.43 and 9,728.51 is: 14,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,915.62 : 47,873.43 = 9,728.51 : x
  2. Step 2: Convert to fraction form
    31,915.62/47,873.43 = 9,728.51/x
  3. Step 3: Cross multiply
    31,915.62x = 47,873.43 × 9,728.51
  4. Step 4: Simplify right side
    31,915.62x = 465,736,903.12
  5. Step 5: Solve for x
    x = 465,736,903.12/31,915.62
  6. Step 6: Final answer
    x = 14,592.76

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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.