Home / 31,136.36-42,977.33-17,715.11

Finding the Fourth Proportional to 31,136.36, 42,977.33 and 17,715.11

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Solution

The fourth proportional to 31,136.36, 42,977.33 and 17,715.11 is: 24,452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136.36 : 42,977.33 = 17,715.11 : x
  2. Step 2: Convert to fraction form
    31,136.36/42,977.33 = 17,715.11/x
  3. Step 3: Cross multiply
    31,136.36x = 42,977.33 × 17,715.11
  4. Step 4: Simplify right side
    31,136.36x = 761,347,824.99
  5. Step 5: Solve for x
    x = 761,347,824.99/31,136.36
  6. Step 6: Final answer
    x = 24,452.05

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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.