Home / 22,645.71-31,254.66-21,649.14

Finding the Fourth Proportional to 22,645.71, 31,254.66 and 21,649.14

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Solution

The fourth proportional to 22,645.71, 31,254.66 and 21,649.14 is: 29,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,645.71 : 31,254.66 = 21,649.14 : x
  2. Step 2: Convert to fraction form
    22,645.71/31,254.66 = 21,649.14/x
  3. Step 3: Cross multiply
    22,645.71x = 31,254.66 × 21,649.14
  4. Step 4: Simplify right side
    22,645.71x = 676,636,509.99
  5. Step 5: Solve for x
    x = 676,636,509.99/22,645.71
  6. Step 6: Final answer
    x = 29,879.24

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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.