Home / 22,946.15-31,661.48-15,403.43

Finding the Fourth Proportional to 22,946.15, 31,661.48 and 15,403.43

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Solution

The fourth proportional to 22,946.15, 31,661.48 and 15,403.43 is: 21,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,946.15 : 31,661.48 = 15,403.43 : x
  2. Step 2: Convert to fraction form
    22,946.15/31,661.48 = 15,403.43/x
  3. Step 3: Cross multiply
    22,946.15x = 31,661.48 × 15,403.43
  4. Step 4: Simplify right side
    22,946.15x = 487,695,508.54
  5. Step 5: Solve for x
    x = 487,695,508.54/22,946.15
  6. Step 6: Final answer
    x = 21,253.91

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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.