Home / 25,491.38-35,172.77-15,417.84

Finding the Fourth Proportional to 25,491.38, 35,172.77 and 15,417.84

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Solution

The fourth proportional to 25,491.38, 35,172.77 and 15,417.84 is: 21,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,491.38 : 35,172.77 = 15,417.84 : x
  2. Step 2: Convert to fraction form
    25,491.38/35,172.77 = 15,417.84/x
  3. Step 3: Cross multiply
    25,491.38x = 35,172.77 × 15,417.84
  4. Step 4: Simplify right side
    25,491.38x = 542,288,195.03
  5. Step 5: Solve for x
    x = 542,288,195.03/25,491.38
  6. Step 6: Final answer
    x = 21,273.40

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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.