Home / 20,572.24-28,362.25-15,446.06

Finding the Fourth Proportional to 20,572.24, 28,362.25 and 15,446.06

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Solution

The fourth proportional to 20,572.24, 28,362.25 and 15,446.06 is: 21,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572.24 : 28,362.25 = 15,446.06 : x
  2. Step 2: Convert to fraction form
    20,572.24/28,362.25 = 15,446.06/x
  3. Step 3: Cross multiply
    20,572.24x = 28,362.25 × 15,446.06
  4. Step 4: Simplify right side
    20,572.24x = 438,085,015.24
  5. Step 5: Solve for x
    x = 438,085,015.24/20,572.24
  6. Step 6: Final answer
    x = 21,294.96

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1.5x scale

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.