Home / 22,612.08-31,205.32-13,661.18

Finding the Fourth Proportional to 22,612.08, 31,205.32 and 13,661.18

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Solution

The fourth proportional to 22,612.08, 31,205.32 and 13,661.18 is: 18,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.08 : 31,205.32 = 13,661.18 : x
  2. Step 2: Convert to fraction form
    22,612.08/31,205.32 = 13,661.18/x
  3. Step 3: Cross multiply
    22,612.08x = 31,205.32 × 13,661.18
  4. Step 4: Simplify right side
    22,612.08x = 426,301,493.48
  5. Step 5: Solve for x
    x = 426,301,493.48/22,612.08
  6. Step 6: Final answer
    x = 18,852.82

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Double scale
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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.