Home / 21,497.47-29,642.55-13,933.87

Finding the Fourth Proportional to 21,497.47, 29,642.55 and 13,933.87

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Solution

The fourth proportional to 21,497.47, 29,642.55 and 13,933.87 is: 19,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.47 : 29,642.55 = 13,933.87 : x
  2. Step 2: Convert to fraction form
    21,497.47/29,642.55 = 13,933.87/x
  3. Step 3: Cross multiply
    21,497.47x = 29,642.55 × 13,933.87
  4. Step 4: Simplify right side
    21,497.47x = 413,035,438.17
  5. Step 5: Solve for x
    x = 413,035,438.17/21,497.47
  6. Step 6: Final answer
    x = 19,213.21

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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.