Home / 19,831.35-27,352.98-12,751.02

Finding the Fourth Proportional to 19,831.35, 27,352.98 and 12,751.02

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Solution

The fourth proportional to 19,831.35, 27,352.98 and 12,751.02 is: 17,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.35 : 27,352.98 = 12,751.02 : x
  2. Step 2: Convert to fraction form
    19,831.35/27,352.98 = 12,751.02/x
  3. Step 3: Cross multiply
    19,831.35x = 27,352.98 × 12,751.02
  4. Step 4: Simplify right side
    19,831.35x = 348,778,395.04
  5. Step 5: Solve for x
    x = 348,778,395.04/19,831.35
  6. Step 6: Final answer
    x = 17,587.22

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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.