Home / 22,661.57-31,288.22-20,264.07

Finding the Fourth Proportional to 22,661.57, 31,288.22 and 20,264.07

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Solution

The fourth proportional to 22,661.57, 31,288.22 and 20,264.07 is: 27,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.57 : 31,288.22 = 20,264.07 : x
  2. Step 2: Convert to fraction form
    22,661.57/31,288.22 = 20,264.07/x
  3. Step 3: Cross multiply
    22,661.57x = 31,288.22 × 20,264.07
  4. Step 4: Simplify right side
    22,661.57x = 634,026,886.24
  5. Step 5: Solve for x
    x = 634,026,886.24/22,661.57
  6. Step 6: Final answer
    x = 27,978.06

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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.