Home / 40,915.95-61,373.87-12,838.47

Finding the Fourth Proportional to 40,915.95, 61,373.87 and 12,838.47

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Solution

The fourth proportional to 40,915.95, 61,373.87 and 12,838.47 is: 19,257.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,915.95 : 61,373.87 = 12,838.47 : x
  2. Step 2: Convert to fraction form
    40,915.95/61,373.87 = 12,838.47/x
  3. Step 3: Cross multiply
    40,915.95x = 61,373.87 × 12,838.47
  4. Step 4: Simplify right side
    40,915.95x = 787,946,588.78
  5. Step 5: Solve for x
    x = 787,946,588.78/40,915.95
  6. Step 6: Final answer
    x = 19,257.69

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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.