Home / 22,753.45-31,400.36-12,681.37

Finding the Fourth Proportional to 22,753.45, 31,400.36 and 12,681.37

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Solution

The fourth proportional to 22,753.45, 31,400.36 and 12,681.37 is: 17,500.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,753.45 : 31,400.36 = 12,681.37 : x
  2. Step 2: Convert to fraction form
    22,753.45/31,400.36 = 12,681.37/x
  3. Step 3: Cross multiply
    22,753.45x = 31,400.36 × 12,681.37
  4. Step 4: Simplify right side
    22,753.45x = 398,199,583.29
  5. Step 5: Solve for x
    x = 398,199,583.29/22,753.45
  6. Step 6: Final answer
    x = 17,500.62

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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.