Home / 21,207.48-31,831.98-17,719.92

Finding the Fourth Proportional to 21,207.48, 31,831.98 and 17,719.92

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Solution

The fourth proportional to 21,207.48, 31,831.98 and 17,719.92 is: 26,597.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.48 : 31,831.98 = 17,719.92 : x
  2. Step 2: Convert to fraction form
    21,207.48/31,831.98 = 17,719.92/x
  3. Step 3: Cross multiply
    21,207.48x = 31,831.98 × 17,719.92
  4. Step 4: Simplify right side
    21,207.48x = 564,060,139.04
  5. Step 5: Solve for x
    x = 564,060,139.04/21,207.48
  6. Step 6: Final answer
    x = 26,597.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.