Home / 21,487.93-32,213.18-17,320.57

Finding the Fourth Proportional to 21,487.93, 32,213.18 and 17,320.57

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Solution

The fourth proportional to 21,487.93, 32,213.18 and 17,320.57 is: 25,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.93 : 32,213.18 = 17,320.57 : x
  2. Step 2: Convert to fraction form
    21,487.93/32,213.18 = 17,320.57/x
  3. Step 3: Cross multiply
    21,487.93x = 32,213.18 × 17,320.57
  4. Step 4: Simplify right side
    21,487.93x = 557,950,552.51
  5. Step 5: Solve for x
    x = 557,950,552.51/21,487.93
  6. Step 6: Final answer
    x = 25,965.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.