Home / 29,136.78-40,208.40-16,560.72

Finding the Fourth Proportional to 29,136.78, 40,208.40 and 16,560.72

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Solution

The fourth proportional to 29,136.78, 40,208.40 and 16,560.72 is: 22,853.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,136.78 : 40,208.40 = 16,560.72 : x
  2. Step 2: Convert to fraction form
    29,136.78/40,208.40 = 16,560.72/x
  3. Step 3: Cross multiply
    29,136.78x = 40,208.40 × 16,560.72
  4. Step 4: Simplify right side
    29,136.78x = 665,880,054.05
  5. Step 5: Solve for x
    x = 665,880,054.05/29,136.78
  6. Step 6: Final answer
    x = 22,853.59

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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.