Home / 30,656.18-42,306.78-17,227.40

Finding the Fourth Proportional to 30,656.18, 42,306.78 and 17,227.40

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Solution

The fourth proportional to 30,656.18, 42,306.78 and 17,227.40 is: 23,774.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,656.18 : 42,306.78 = 17,227.40 : x
  2. Step 2: Convert to fraction form
    30,656.18/42,306.78 = 17,227.40/x
  3. Step 3: Cross multiply
    30,656.18x = 42,306.78 × 17,227.40
  4. Step 4: Simplify right side
    30,656.18x = 728,835,610.24
  5. Step 5: Solve for x
    x = 728,835,610.24/30,656.18
  6. Step 6: Final answer
    x = 23,774.51

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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.