Home / 21,449.21-29,592.95-13,901.42

Finding the Fourth Proportional to 21,449.21, 29,592.95 and 13,901.42

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Solution

The fourth proportional to 21,449.21, 29,592.95 and 13,901.42 is: 19,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.21 : 29,592.95 = 13,901.42 : x
  2. Step 2: Convert to fraction form
    21,449.21/29,592.95 = 13,901.42/x
  3. Step 3: Cross multiply
    21,449.21x = 29,592.95 × 13,901.42
  4. Step 4: Simplify right side
    21,449.21x = 411,384,031.46
  5. Step 5: Solve for x
    x = 411,384,031.46/21,449.21
  6. Step 6: Final answer
    x = 19,179.45

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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.