Home / 18,570.31-25,631.49-10,617.18

Finding the Fourth Proportional to 18,570.31, 25,631.49 and 10,617.18

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Solution

The fourth proportional to 18,570.31, 25,631.49 and 10,617.18 is: 14,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.31 : 25,631.49 = 10,617.18 : x
  2. Step 2: Convert to fraction form
    18,570.31/25,631.49 = 10,617.18/x
  3. Step 3: Cross multiply
    18,570.31x = 25,631.49 × 10,617.18
  4. Step 4: Simplify right side
    18,570.31x = 272,134,026.97
  5. Step 5: Solve for x
    x = 272,134,026.97/18,570.31
  6. Step 6: Final answer
    x = 14,654.25

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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.