Home / 31,922.51-47,867.14-11,915.55

Finding the Fourth Proportional to 31,922.51, 47,867.14 and 11,915.55

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Solution

The fourth proportional to 31,922.51, 47,867.14 and 11,915.55 is: 17,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,922.51 : 47,867.14 = 11,915.55 : x
  2. Step 2: Convert to fraction form
    31,922.51/47,867.14 = 11,915.55/x
  3. Step 3: Cross multiply
    31,922.51x = 47,867.14 × 11,915.55
  4. Step 4: Simplify right side
    31,922.51x = 570,363,158.15
  5. Step 5: Solve for x
    x = 570,363,158.15/31,922.51
  6. Step 6: Final answer
    x = 17,867.12

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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.