Home / 15,389.52-21,229.96-14,793.36

Finding the Fourth Proportional to 15,389.52, 21,229.96 and 14,793.36

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Solution

The fourth proportional to 15,389.52, 21,229.96 and 14,793.36 is: 20,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.52 : 21,229.96 = 14,793.36 : x
  2. Step 2: Convert to fraction form
    15,389.52/21,229.96 = 14,793.36/x
  3. Step 3: Cross multiply
    15,389.52x = 21,229.96 × 14,793.36
  4. Step 4: Simplify right side
    15,389.52x = 314,062,441.07
  5. Step 5: Solve for x
    x = 314,062,441.07/15,389.52
  6. Step 6: Final answer
    x = 20,407.55

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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.