Home / 21,523.48-29,716.32-19,281.40

Finding the Fourth Proportional to 21,523.48, 29,716.32 and 19,281.40

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Solution

The fourth proportional to 21,523.48, 29,716.32 and 19,281.40 is: 26,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.48 : 29,716.32 = 19,281.40 : x
  2. Step 2: Convert to fraction form
    21,523.48/29,716.32 = 19,281.40/x
  3. Step 3: Cross multiply
    21,523.48x = 29,716.32 × 19,281.40
  4. Step 4: Simplify right side
    21,523.48x = 572,972,252.45
  5. Step 5: Solve for x
    x = 572,972,252.45/21,523.48
  6. Step 6: Final answer
    x = 26,620.80

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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.