Home / 22,574.95-31,137.96-15,489.07

Finding the Fourth Proportional to 22,574.95, 31,137.96 and 15,489.07

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Solution

The fourth proportional to 22,574.95, 31,137.96 and 15,489.07 is: 21,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,574.95 : 31,137.96 = 15,489.07 : x
  2. Step 2: Convert to fraction form
    22,574.95/31,137.96 = 15,489.07/x
  3. Step 3: Cross multiply
    22,574.95x = 31,137.96 × 15,489.07
  4. Step 4: Simplify right side
    22,574.95x = 482,298,042.10
  5. Step 5: Solve for x
    x = 482,298,042.10/22,574.95
  6. Step 6: Final answer
    x = 21,364.30

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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.