Home / 21,272.16-29,354.45-11,710.19

Finding the Fourth Proportional to 21,272.16, 29,354.45 and 11,710.19

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Solution

The fourth proportional to 21,272.16, 29,354.45 and 11,710.19 is: 16,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.16 : 29,354.45 = 11,710.19 : x
  2. Step 2: Convert to fraction form
    21,272.16/29,354.45 = 11,710.19/x
  3. Step 3: Cross multiply
    21,272.16x = 29,354.45 × 11,710.19
  4. Step 4: Simplify right side
    21,272.16x = 343,746,201.68
  5. Step 5: Solve for x
    x = 343,746,201.68/21,272.16
  6. Step 6: Final answer
    x = 16,159.44

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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.