Home / 24,699.78-34,086.45-13,521.78

Finding the Fourth Proportional to 24,699.78, 34,086.45 and 13,521.78

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Solution

The fourth proportional to 24,699.78, 34,086.45 and 13,521.78 is: 18,660.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,699.78 : 34,086.45 = 13,521.78 : x
  2. Step 2: Convert to fraction form
    24,699.78/34,086.45 = 13,521.78/x
  3. Step 3: Cross multiply
    24,699.78x = 34,086.45 × 13,521.78
  4. Step 4: Simplify right side
    24,699.78x = 460,909,477.88
  5. Step 5: Solve for x
    x = 460,909,477.88/24,699.78
  6. Step 6: Final answer
    x = 18,660.47

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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.