Home / 19,785.74-27,303.28-10,831.52

Finding the Fourth Proportional to 19,785.74, 27,303.28 and 10,831.52

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Solution

The fourth proportional to 19,785.74, 27,303.28 and 10,831.52 is: 14,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.74 : 27,303.28 = 10,831.52 : x
  2. Step 2: Convert to fraction form
    19,785.74/27,303.28 = 10,831.52/x
  3. Step 3: Cross multiply
    19,785.74x = 27,303.28 × 10,831.52
  4. Step 4: Simplify right side
    19,785.74x = 295,736,023.39
  5. Step 5: Solve for x
    x = 295,736,023.39/19,785.74
  6. Step 6: Final answer
    x = 14,946.93

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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.