Home / 22,090.08-30,442.32-15,791.52

Finding the Fourth Proportional to 22,090.08, 30,442.32 and 15,791.52

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Solution

The fourth proportional to 22,090.08, 30,442.32 and 15,791.52 is: 21,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,090.08 : 30,442.32 = 15,791.52 : x
  2. Step 2: Convert to fraction form
    22,090.08/30,442.32 = 15,791.52/x
  3. Step 3: Cross multiply
    22,090.08x = 30,442.32 × 15,791.52
  4. Step 4: Simplify right side
    22,090.08x = 480,730,505.13
  5. Step 5: Solve for x
    x = 480,730,505.13/22,090.08
  6. Step 6: Final answer
    x = 21,762.28

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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.