Home / 34,778.31-52,122.11-13,990.47

Finding the Fourth Proportional to 34,778.31, 52,122.11 and 13,990.47

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Solution

The fourth proportional to 34,778.31, 52,122.11 and 13,990.47 is: 20,967.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,778.31 : 52,122.11 = 13,990.47 : x
  2. Step 2: Convert to fraction form
    34,778.31/52,122.11 = 13,990.47/x
  3. Step 3: Cross multiply
    34,778.31x = 52,122.11 × 13,990.47
  4. Step 4: Simplify right side
    34,778.31x = 729,212,746.34
  5. Step 5: Solve for x
    x = 729,212,746.34/34,778.31
  6. Step 6: Final answer
    x = 20,967.46

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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.