Home / 25,422.78-35,085.75-15,356.22

Finding the Fourth Proportional to 25,422.78, 35,085.75 and 15,356.22

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Solution

The fourth proportional to 25,422.78, 35,085.75 and 15,356.22 is: 21,192.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,422.78 : 35,085.75 = 15,356.22 : x
  2. Step 2: Convert to fraction form
    25,422.78/35,085.75 = 15,356.22/x
  3. Step 3: Cross multiply
    25,422.78x = 35,085.75 × 15,356.22
  4. Step 4: Simplify right side
    25,422.78x = 538,784,495.87
  5. Step 5: Solve for x
    x = 538,784,495.87/25,422.78
  6. Step 6: Final answer
    x = 21,192.98

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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.