Home / 22,755.48-31,417.08-21,650.64

Finding the Fourth Proportional to 22,755.48, 31,417.08 and 21,650.64

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Solution

The fourth proportional to 22,755.48, 31,417.08 and 21,650.64 is: 29,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,755.48 : 31,417.08 = 21,650.64 : x
  2. Step 2: Convert to fraction form
    22,755.48/31,417.08 = 21,650.64/x
  3. Step 3: Cross multiply
    22,755.48x = 31,417.08 × 21,650.64
  4. Step 4: Simplify right side
    22,755.48x = 680,199,888.93
  5. Step 5: Solve for x
    x = 680,199,888.93/22,755.48
  6. Step 6: Final answer
    x = 29,891.70

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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.