Home / 15,391.52-21,232.72-14,795.36

Finding the Fourth Proportional to 15,391.52, 21,232.72 and 14,795.36

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Solution

The fourth proportional to 15,391.52, 21,232.72 and 14,795.36 is: 20,410.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391.52 : 21,232.72 = 14,795.36 : x
  2. Step 2: Convert to fraction form
    15,391.52/21,232.72 = 14,795.36/x
  3. Step 3: Cross multiply
    15,391.52x = 21,232.72 × 14,795.36
  4. Step 4: Simplify right side
    15,391.52x = 314,145,736.18
  5. Step 5: Solve for x
    x = 314,145,736.18/15,391.52
  6. Step 6: Final answer
    x = 20,410.31

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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.