Home / 34,694.40-47,878.14-18,779.10

Finding the Fourth Proportional to 34,694.40, 47,878.14 and 18,779.10

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Solution

The fourth proportional to 34,694.40, 47,878.14 and 18,779.10 is: 25,915.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,694.40 : 47,878.14 = 18,779.10 : x
  2. Step 2: Convert to fraction form
    34,694.40/47,878.14 = 18,779.10/x
  3. Step 3: Cross multiply
    34,694.40x = 47,878.14 × 18,779.10
  4. Step 4: Simplify right side
    34,694.40x = 899,108,378.87
  5. Step 5: Solve for x
    x = 899,108,378.87/34,694.40
  6. Step 6: Final answer
    x = 25,915.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.