Home / 20,247.81-27,946.96-13,798.11

Finding the Fourth Proportional to 20,247.81, 27,946.96 and 13,798.11

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Solution

The fourth proportional to 20,247.81, 27,946.96 and 13,798.11 is: 19,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.81 : 27,946.96 = 13,798.11 : x
  2. Step 2: Convert to fraction form
    20,247.81/27,946.96 = 13,798.11/x
  3. Step 3: Cross multiply
    20,247.81x = 27,946.96 × 13,798.11
  4. Step 4: Simplify right side
    20,247.81x = 385,615,298.55
  5. Step 5: Solve for x
    x = 385,615,298.55/20,247.81
  6. Step 6: Final answer
    x = 19,044.79

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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.