Home / 18,326.02-25,273.21-15,499.32

Finding the Fourth Proportional to 18,326.02, 25,273.21 and 15,499.32

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Solution

The fourth proportional to 18,326.02, 25,273.21 and 15,499.32 is: 21,374.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.02 : 25,273.21 = 15,499.32 : x
  2. Step 2: Convert to fraction form
    18,326.02/25,273.21 = 15,499.32/x
  3. Step 3: Cross multiply
    18,326.02x = 25,273.21 × 15,499.32
  4. Step 4: Simplify right side
    18,326.02x = 391,717,569.22
  5. Step 5: Solve for x
    x = 391,717,569.22/18,326.02
  6. Step 6: Final answer
    x = 21,374.94

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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.