Home / 29,123.36-40,136.94-21,151.74

Finding the Fourth Proportional to 29,123.36, 40,136.94 and 21,151.74

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Solution

The fourth proportional to 29,123.36, 40,136.94 and 21,151.74 is: 29,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,123.36 : 40,136.94 = 21,151.74 : x
  2. Step 2: Convert to fraction form
    29,123.36/40,136.94 = 21,151.74/x
  3. Step 3: Cross multiply
    29,123.36x = 40,136.94 × 21,151.74
  4. Step 4: Simplify right side
    29,123.36x = 848,966,119.28
  5. Step 5: Solve for x
    x = 848,966,119.28/29,123.36
  6. Step 6: Final answer
    x = 29,150.69

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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.