Home / 19,815.68-29,720.76-5,023.68

Finding the Fourth Proportional to 19,815.68, 29,720.76 and 5,023.68

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Solution

The fourth proportional to 19,815.68, 29,720.76 and 5,023.68 is: 7,534.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.68 : 29,720.76 = 5,023.68 : x
  2. Step 2: Convert to fraction form
    19,815.68/29,720.76 = 5,023.68/x
  3. Step 3: Cross multiply
    19,815.68x = 29,720.76 × 5,023.68
  4. Step 4: Simplify right side
    19,815.68x = 149,307,587.60
  5. Step 5: Solve for x
    x = 149,307,587.60/19,815.68
  6. Step 6: Final answer
    x = 7,534.82

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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.