Home / 22,768.02-31,420.05-12,697.11

Finding the Fourth Proportional to 22,768.02, 31,420.05 and 12,697.11

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Solution

The fourth proportional to 22,768.02, 31,420.05 and 12,697.11 is: 17,522.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,768.02 : 31,420.05 = 12,697.11 : x
  2. Step 2: Convert to fraction form
    22,768.02/31,420.05 = 12,697.11/x
  3. Step 3: Cross multiply
    22,768.02x = 31,420.05 × 12,697.11
  4. Step 4: Simplify right side
    22,768.02x = 398,943,783.44
  5. Step 5: Solve for x
    x = 398,943,783.44/22,768.02
  6. Step 6: Final answer
    x = 17,522.11

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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.