Home / 34,281.76-51,428.40-10,915.36

Finding the Fourth Proportional to 34,281.76, 51,428.40 and 10,915.36

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Solution

The fourth proportional to 34,281.76, 51,428.40 and 10,915.36 is: 16,374.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,281.76 : 51,428.40 = 10,915.36 : x
  2. Step 2: Convert to fraction form
    34,281.76/51,428.40 = 10,915.36/x
  3. Step 3: Cross multiply
    34,281.76x = 51,428.40 × 10,915.36
  4. Step 4: Simplify right side
    34,281.76x = 561,359,500.22
  5. Step 5: Solve for x
    x = 561,359,500.22/34,281.76
  6. Step 6: Final answer
    x = 16,374.87

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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.