Home / 19,429.08-26,812.16-11,471.81

Finding the Fourth Proportional to 19,429.08, 26,812.16 and 11,471.81

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Solution

The fourth proportional to 19,429.08, 26,812.16 and 11,471.81 is: 15,831.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429.08 : 26,812.16 = 11,471.81 : x
  2. Step 2: Convert to fraction form
    19,429.08/26,812.16 = 11,471.81/x
  3. Step 3: Cross multiply
    19,429.08x = 26,812.16 × 11,471.81
  4. Step 4: Simplify right side
    19,429.08x = 307,584,005.21
  5. Step 5: Solve for x
    x = 307,584,005.21/19,429.08
  6. Step 6: Final answer
    x = 15,831.12

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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.