Home / 19,431.18-29,146.77-5,580.18

Finding the Fourth Proportional to 19,431.18, 29,146.77 and 5,580.18

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Solution

The fourth proportional to 19,431.18, 29,146.77 and 5,580.18 is: 8,370.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.18 : 29,146.77 = 5,580.18 : x
  2. Step 2: Convert to fraction form
    19,431.18/29,146.77 = 5,580.18/x
  3. Step 3: Cross multiply
    19,431.18x = 29,146.77 × 5,580.18
  4. Step 4: Simplify right side
    19,431.18x = 162,644,223.02
  5. Step 5: Solve for x
    x = 162,644,223.02/19,431.18
  6. Step 6: Final answer
    x = 8,370.27

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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.