Home / 21,397.06-29,462.99-18,972.23

Finding the Fourth Proportional to 21,397.06, 29,462.99 and 18,972.23

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Solution

The fourth proportional to 21,397.06, 29,462.99 and 18,972.23 is: 26,124.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397.06 : 29,462.99 = 18,972.23 : x
  2. Step 2: Convert to fraction form
    21,397.06/29,462.99 = 18,972.23/x
  3. Step 3: Cross multiply
    21,397.06x = 29,462.99 × 18,972.23
  4. Step 4: Simplify right side
    21,397.06x = 558,978,487.31
  5. Step 5: Solve for x
    x = 558,978,487.31/21,397.06
  6. Step 6: Final answer
    x = 26,124.08

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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.