Home / 22,728.14-31,374.54-15,280.46

Finding the Fourth Proportional to 22,728.14, 31,374.54 and 15,280.46

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Solution

The fourth proportional to 22,728.14, 31,374.54 and 15,280.46 is: 21,093.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,728.14 : 31,374.54 = 15,280.46 : x
  2. Step 2: Convert to fraction form
    22,728.14/31,374.54 = 15,280.46/x
  3. Step 3: Cross multiply
    22,728.14x = 31,374.54 × 15,280.46
  4. Step 4: Simplify right side
    22,728.14x = 479,417,403.49
  5. Step 5: Solve for x
    x = 479,417,403.49/22,728.14
  6. Step 6: Final answer
    x = 21,093.56

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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.