Home / 31,326.40-43,230.08-17,179.20

Finding the Fourth Proportional to 31,326.40, 43,230.08 and 17,179.20

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Solution

The fourth proportional to 31,326.40, 43,230.08 and 17,179.20 is: 23,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,326.40 : 43,230.08 = 17,179.20 : x
  2. Step 2: Convert to fraction form
    31,326.40/43,230.08 = 17,179.20/x
  3. Step 3: Cross multiply
    31,326.40x = 43,230.08 × 17,179.20
  4. Step 4: Simplify right side
    31,326.40x = 742,658,190.34
  5. Step 5: Solve for x
    x = 742,658,190.34/31,326.40
  6. Step 6: Final answer
    x = 23,707.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.