Home / 19,629.35-29,434.17-9,090.31

Finding the Fourth Proportional to 19,629.35, 29,434.17 and 9,090.31

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Solution

The fourth proportional to 19,629.35, 29,434.17 and 9,090.31 is: 13,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.35 : 29,434.17 = 9,090.31 : x
  2. Step 2: Convert to fraction form
    19,629.35/29,434.17 = 9,090.31/x
  3. Step 3: Cross multiply
    19,629.35x = 29,434.17 × 9,090.31
  4. Step 4: Simplify right side
    19,629.35x = 267,565,582.72
  5. Step 5: Solve for x
    x = 267,565,582.72/19,629.35
  6. Step 6: Final answer
    x = 13,630.89

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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.