Home / 21,058.23-31,568.75-8,588.69

Finding the Fourth Proportional to 21,058.23, 31,568.75 and 8,588.69

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Solution

The fourth proportional to 21,058.23, 31,568.75 and 8,588.69 is: 12,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.23 : 31,568.75 = 8,588.69 : x
  2. Step 2: Convert to fraction form
    21,058.23/31,568.75 = 8,588.69/x
  3. Step 3: Cross multiply
    21,058.23x = 31,568.75 × 8,588.69
  4. Step 4: Simplify right side
    21,058.23x = 271,134,207.44
  5. Step 5: Solve for x
    x = 271,134,207.44/21,058.23
  6. Step 6: Final answer
    x = 12,875.45

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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.