Home / 19,885.42-29,821.79-6,555.93

Finding the Fourth Proportional to 19,885.42, 29,821.79 and 6,555.93

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Solution

The fourth proportional to 19,885.42, 29,821.79 and 6,555.93 is: 9,831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,885.42 : 29,821.79 = 6,555.93 : x
  2. Step 2: Convert to fraction form
    19,885.42/29,821.79 = 6,555.93/x
  3. Step 3: Cross multiply
    19,885.42x = 29,821.79 × 6,555.93
  4. Step 4: Simplify right side
    19,885.42x = 195,509,640.02
  5. Step 5: Solve for x
    x = 195,509,640.02/19,885.42
  6. Step 6: Final answer
    x = 9,831.81

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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.