Home / 30,656.14-42,306.47-17,229.98

Finding the Fourth Proportional to 30,656.14, 42,306.47 and 17,229.98

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Solution

The fourth proportional to 30,656.14, 42,306.47 and 17,229.98 is: 23,777.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,656.14 : 42,306.47 = 17,229.98 : x
  2. Step 2: Convert to fraction form
    30,656.14/42,306.47 = 17,229.98/x
  3. Step 3: Cross multiply
    30,656.14x = 42,306.47 × 17,229.98
  4. Step 4: Simplify right side
    30,656.14x = 728,939,631.97
  5. Step 5: Solve for x
    x = 728,939,631.97/30,656.14
  6. Step 6: Final answer
    x = 23,777.93

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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.