Home / 25,753.36-38,805.53-21,175.92

Finding the Fourth Proportional to 25,753.36, 38,805.53 and 21,175.92

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Solution

The fourth proportional to 25,753.36, 38,805.53 and 21,175.92 is: 31,908.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,753.36 : 38,805.53 = 21,175.92 : x
  2. Step 2: Convert to fraction form
    25,753.36/38,805.53 = 21,175.92/x
  3. Step 3: Cross multiply
    25,753.36x = 38,805.53 × 21,175.92
  4. Step 4: Simplify right side
    25,753.36x = 821,742,798.84
  5. Step 5: Solve for x
    x = 821,742,798.84/25,753.36
  6. Step 6: Final answer
    x = 31,908.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.