Home / 15,699.15-21,663.84-14,445.27

Finding the Fourth Proportional to 15,699.15, 21,663.84 and 14,445.27

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Solution

The fourth proportional to 15,699.15, 21,663.84 and 14,445.27 is: 19,933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.15 : 21,663.84 = 14,445.27 : x
  2. Step 2: Convert to fraction form
    15,699.15/21,663.84 = 14,445.27/x
  3. Step 3: Cross multiply
    15,699.15x = 21,663.84 × 14,445.27
  4. Step 4: Simplify right side
    15,699.15x = 312,940,018.04
  5. Step 5: Solve for x
    x = 312,940,018.04/15,699.15
  6. Step 6: Final answer
    x = 19,933.56

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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.