Home / 19,831.72-29,707.08-11,071.30

Finding the Fourth Proportional to 19,831.72, 29,707.08 and 11,071.30

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Solution

The fourth proportional to 19,831.72, 29,707.08 and 11,071.30 is: 16,584.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.72 : 29,707.08 = 11,071.30 : x
  2. Step 2: Convert to fraction form
    19,831.72/29,707.08 = 11,071.30/x
  3. Step 3: Cross multiply
    19,831.72x = 29,707.08 × 11,071.30
  4. Step 4: Simplify right side
    19,831.72x = 328,895,994.80
  5. Step 5: Solve for x
    x = 328,895,994.80/19,831.72
  6. Step 6: Final answer
    x = 16,584.34

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1.5x scale

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.