Home / 20,710.02-31,076.91-8,058.11

Finding the Fourth Proportional to 20,710.02, 31,076.91 and 8,058.11

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Solution

The fourth proportional to 20,710.02, 31,076.91 and 8,058.11 is: 12,091.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.02 : 31,076.91 = 8,058.11 : x
  2. Step 2: Convert to fraction form
    20,710.02/31,076.91 = 8,058.11/x
  3. Step 3: Cross multiply
    20,710.02x = 31,076.91 × 8,058.11
  4. Step 4: Simplify right side
    20,710.02x = 250,421,118.95
  5. Step 5: Solve for x
    x = 250,421,118.95/20,710.02
  6. Step 6: Final answer
    x = 12,091.79

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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.