Home / 25,845.13-35,619.28-20,176.93

Finding the Fourth Proportional to 25,845.13, 35,619.28 and 20,176.93

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Solution

The fourth proportional to 25,845.13, 35,619.28 and 20,176.93 is: 27,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,845.13 : 35,619.28 = 20,176.93 : x
  2. Step 2: Convert to fraction form
    25,845.13/35,619.28 = 20,176.93/x
  3. Step 3: Cross multiply
    25,845.13x = 35,619.28 × 20,176.93
  4. Step 4: Simplify right side
    25,845.13x = 718,687,719.21
  5. Step 5: Solve for x
    x = 718,687,719.21/25,845.13
  6. Step 6: Final answer
    x = 27,807.47

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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.