Home / 28,303.18-42,414.54-20,849.02

Finding the Fourth Proportional to 28,303.18, 42,414.54 and 20,849.02

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Solution

The fourth proportional to 28,303.18, 42,414.54 and 20,849.02 is: 31,243.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,303.18 : 42,414.54 = 20,849.02 : x
  2. Step 2: Convert to fraction form
    28,303.18/42,414.54 = 20,849.02/x
  3. Step 3: Cross multiply
    28,303.18x = 42,414.54 × 20,849.02
  4. Step 4: Simplify right side
    28,303.18x = 884,301,592.75
  5. Step 5: Solve for x
    x = 884,301,592.75/28,303.18
  6. Step 6: Final answer
    x = 31,243.90

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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.