Home / 21,058.97-31,588.31-8,576.06

Finding the Fourth Proportional to 21,058.97, 31,588.31 and 8,576.06

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Solution

The fourth proportional to 21,058.97, 31,588.31 and 8,576.06 is: 12,864.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.97 : 31,588.31 = 8,576.06 : x
  2. Step 2: Convert to fraction form
    21,058.97/31,588.31 = 8,576.06/x
  3. Step 3: Cross multiply
    21,058.97x = 31,588.31 × 8,576.06
  4. Step 4: Simplify right side
    21,058.97x = 270,903,041.04
  5. Step 5: Solve for x
    x = 270,903,041.04/21,058.97
  6. Step 6: Final answer
    x = 12,864.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.