Home / 22,487.64-31,036.68-21,491.16

Finding the Fourth Proportional to 22,487.64, 31,036.68 and 21,491.16

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Solution

The fourth proportional to 22,487.64, 31,036.68 and 21,491.16 is: 29,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.64 : 31,036.68 = 21,491.16 : x
  2. Step 2: Convert to fraction form
    22,487.64/31,036.68 = 21,491.16/x
  3. Step 3: Cross multiply
    22,487.64x = 31,036.68 × 21,491.16
  4. Step 4: Simplify right side
    22,487.64x = 667,014,255.75
  5. Step 5: Solve for x
    x = 667,014,255.75/22,487.64
  6. Step 6: Final answer
    x = 29,661.37

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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.