Home / 19,831.29-27,368.58-13,105.23

Finding the Fourth Proportional to 19,831.29, 27,368.58 and 13,105.23

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Solution

The fourth proportional to 19,831.29, 27,368.58 and 13,105.23 is: 18,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.29 : 27,368.58 = 13,105.23 : x
  2. Step 2: Convert to fraction form
    19,831.29/27,368.58 = 13,105.23/x
  3. Step 3: Cross multiply
    19,831.29x = 27,368.58 × 13,105.23
  4. Step 4: Simplify right side
    19,831.29x = 358,671,535.67
  5. Step 5: Solve for x
    x = 358,671,535.67/19,831.29
  6. Step 6: Final answer
    x = 18,086.14

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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.