Home / 20,314.47-28,034.04-11,362.13

Finding the Fourth Proportional to 20,314.47, 28,034.04 and 11,362.13

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Solution

The fourth proportional to 20,314.47, 28,034.04 and 11,362.13 is: 15,679.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.47 : 28,034.04 = 11,362.13 : x
  2. Step 2: Convert to fraction form
    20,314.47/28,034.04 = 11,362.13/x
  3. Step 3: Cross multiply
    20,314.47x = 28,034.04 × 11,362.13
  4. Step 4: Simplify right side
    20,314.47x = 318,526,266.74
  5. Step 5: Solve for x
    x = 318,526,266.74/20,314.47
  6. Step 6: Final answer
    x = 15,679.77

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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.