Home / 19,920.83-29,881.42-5,689.27

Finding the Fourth Proportional to 19,920.83, 29,881.42 and 5,689.27

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Solution

The fourth proportional to 19,920.83, 29,881.42 and 5,689.27 is: 8,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.83 : 29,881.42 = 5,689.27 : x
  2. Step 2: Convert to fraction form
    19,920.83/29,881.42 = 5,689.27/x
  3. Step 3: Cross multiply
    19,920.83x = 29,881.42 × 5,689.27
  4. Step 4: Simplify right side
    19,920.83x = 170,003,466.36
  5. Step 5: Solve for x
    x = 170,003,466.36/19,920.83
  6. Step 6: Final answer
    x = 8,533.95

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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.