Home / 22,754.51-31,400.19-12,684.05

Finding the Fourth Proportional to 22,754.51, 31,400.19 and 12,684.05

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Solution

The fourth proportional to 22,754.51, 31,400.19 and 12,684.05 is: 17,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,754.51 : 31,400.19 = 12,684.05 : x
  2. Step 2: Convert to fraction form
    22,754.51/31,400.19 = 12,684.05/x
  3. Step 3: Cross multiply
    22,754.51x = 31,400.19 × 12,684.05
  4. Step 4: Simplify right side
    22,754.51x = 398,281,579.97
  5. Step 5: Solve for x
    x = 398,281,579.97/22,754.51
  6. Step 6: Final answer
    x = 17,503.41

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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.