Home / 22,345.98-30,836.45-13,398.41

Finding the Fourth Proportional to 22,345.98, 30,836.45 and 13,398.41

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Solution

The fourth proportional to 22,345.98, 30,836.45 and 13,398.41 is: 18,489.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,345.98 : 30,836.45 = 13,398.41 : x
  2. Step 2: Convert to fraction form
    22,345.98/30,836.45 = 13,398.41/x
  3. Step 3: Cross multiply
    22,345.98x = 30,836.45 × 13,398.41
  4. Step 4: Simplify right side
    22,345.98x = 413,159,435.27
  5. Step 5: Solve for x
    x = 413,159,435.27/22,345.98
  6. Step 6: Final answer
    x = 18,489.21

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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.