Home / 21,738.41-29,931.84-16,977.59

Finding the Fourth Proportional to 21,738.41, 29,931.84 and 16,977.59

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Solution

The fourth proportional to 21,738.41, 29,931.84 and 16,977.59 is: 23,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,738.41 : 29,931.84 = 16,977.59 : x
  2. Step 2: Convert to fraction form
    21,738.41/29,931.84 = 16,977.59/x
  3. Step 3: Cross multiply
    21,738.41x = 29,931.84 × 16,977.59
  4. Step 4: Simplify right side
    21,738.41x = 508,170,507.47
  5. Step 5: Solve for x
    x = 508,170,507.47/21,738.41
  6. Step 6: Final answer
    x = 23,376.62

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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.