Home / 31,915.95-47,851.71-14,136.95

Finding the Fourth Proportional to 31,915.95, 47,851.71 and 14,136.95

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Solution

The fourth proportional to 31,915.95, 47,851.71 and 14,136.95 is: 21,195.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,915.95 : 47,851.71 = 14,136.95 : x
  2. Step 2: Convert to fraction form
    31,915.95/47,851.71 = 14,136.95/x
  3. Step 3: Cross multiply
    31,915.95x = 47,851.71 × 14,136.95
  4. Step 4: Simplify right side
    31,915.95x = 676,477,231.68
  5. Step 5: Solve for x
    x = 676,477,231.68/31,915.95
  6. Step 6: Final answer
    x = 21,195.59

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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.