Home / 22,798.18-31,463.08-12,728.60

Finding the Fourth Proportional to 22,798.18, 31,463.08 and 12,728.60

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Solution

The fourth proportional to 22,798.18, 31,463.08 and 12,728.60 is: 17,566.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,798.18 : 31,463.08 = 12,728.60 : x
  2. Step 2: Convert to fraction form
    22,798.18/31,463.08 = 12,728.60/x
  3. Step 3: Cross multiply
    22,798.18x = 31,463.08 × 12,728.60
  4. Step 4: Simplify right side
    22,798.18x = 400,480,960.09
  5. Step 5: Solve for x
    x = 400,480,960.09/22,798.18
  6. Step 6: Final answer
    x = 17,566.36

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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.