Home / 20,011.96-29,875.07-17,388.28

Finding the Fourth Proportional to 20,011.96, 29,875.07 and 17,388.28

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Solution

The fourth proportional to 20,011.96, 29,875.07 and 17,388.28 is: 25,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.96 : 29,875.07 = 17,388.28 : x
  2. Step 2: Convert to fraction form
    20,011.96/29,875.07 = 17,388.28/x
  3. Step 3: Cross multiply
    20,011.96x = 29,875.07 × 17,388.28
  4. Step 4: Simplify right side
    20,011.96x = 519,476,082.18
  5. Step 5: Solve for x
    x = 519,476,082.18/20,011.96
  6. Step 6: Final answer
    x = 25,958.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.