Home / 22,726.14-31,371.78-15,278.46

Finding the Fourth Proportional to 22,726.14, 31,371.78 and 15,278.46

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Solution

The fourth proportional to 22,726.14, 31,371.78 and 15,278.46 is: 21,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,726.14 : 31,371.78 = 15,278.46 : x
  2. Step 2: Convert to fraction form
    22,726.14/31,371.78 = 15,278.46/x
  3. Step 3: Cross multiply
    22,726.14x = 31,371.78 × 15,278.46
  4. Step 4: Simplify right side
    22,726.14x = 479,312,485.86
  5. Step 5: Solve for x
    x = 479,312,485.86/22,726.14
  6. Step 6: Final answer
    x = 21,090.80

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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.