Home / 20,254.81-27,948.87-11,301.17

Finding the Fourth Proportional to 20,254.81, 27,948.87 and 11,301.17

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Solution

The fourth proportional to 20,254.81, 27,948.87 and 11,301.17 is: 15,594.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.81 : 27,948.87 = 11,301.17 : x
  2. Step 2: Convert to fraction form
    20,254.81/27,948.87 = 11,301.17/x
  3. Step 3: Cross multiply
    20,254.81x = 27,948.87 × 11,301.17
  4. Step 4: Simplify right side
    20,254.81x = 315,854,980.43
  5. Step 5: Solve for x
    x = 315,854,980.43/20,254.81
  6. Step 6: Final answer
    x = 15,594.07

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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.