Home / 21,637.86-29,860.29-11,701.86

Finding the Fourth Proportional to 21,637.86, 29,860.29 and 11,701.86

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Solution

The fourth proportional to 21,637.86, 29,860.29 and 11,701.86 is: 16,148.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637.86 : 29,860.29 = 11,701.86 : x
  2. Step 2: Convert to fraction form
    21,637.86/29,860.29 = 11,701.86/x
  3. Step 3: Cross multiply
    21,637.86x = 29,860.29 × 11,701.86
  4. Step 4: Simplify right side
    21,637.86x = 349,420,933.14
  5. Step 5: Solve for x
    x = 349,420,933.14/21,637.86
  6. Step 6: Final answer
    x = 16,148.59

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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.