Home / 21,497.17-29,667.90-12,545.26

Finding the Fourth Proportional to 21,497.17, 29,667.90 and 12,545.26

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Solution

The fourth proportional to 21,497.17, 29,667.90 and 12,545.26 is: 17,313.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.17 : 29,667.90 = 12,545.26 : x
  2. Step 2: Convert to fraction form
    21,497.17/29,667.90 = 12,545.26/x
  3. Step 3: Cross multiply
    21,497.17x = 29,667.90 × 12,545.26
  4. Step 4: Simplify right side
    21,497.17x = 372,191,519.15
  5. Step 5: Solve for x
    x = 372,191,519.15/21,497.17
  6. Step 6: Final answer
    x = 17,313.51

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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.