Home / 28,341.24-42,419.22-20,842.79

Finding the Fourth Proportional to 28,341.24, 42,419.22 and 20,842.79

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Solution

The fourth proportional to 28,341.24, 42,419.22 and 20,842.79 is: 31,196.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.24 : 42,419.22 = 20,842.79 : x
  2. Step 2: Convert to fraction form
    28,341.24/42,419.22 = 20,842.79/x
  3. Step 3: Cross multiply
    28,341.24x = 42,419.22 × 20,842.79
  4. Step 4: Simplify right side
    28,341.24x = 884,135,020.70
  5. Step 5: Solve for x
    x = 884,135,020.70/28,341.24
  6. Step 6: Final answer
    x = 31,196.06

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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.