Home / 22,669.32-31,313.40-15,583.44

Finding the Fourth Proportional to 22,669.32, 31,313.40 and 15,583.44

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Solution

The fourth proportional to 22,669.32, 31,313.40 and 15,583.44 is: 21,525.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,669.32 : 31,313.40 = 15,583.44 : x
  2. Step 2: Convert to fraction form
    22,669.32/31,313.40 = 15,583.44/x
  3. Step 3: Cross multiply
    22,669.32x = 31,313.40 × 15,583.44
  4. Step 4: Simplify right side
    22,669.32x = 487,970,490.10
  5. Step 5: Solve for x
    x = 487,970,490.10/22,669.32
  6. Step 6: Final answer
    x = 21,525.59

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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.