Home / 37,068.36-51,158-21,155.20

Finding the Fourth Proportional to 37,068.36, 51,158 and 21,155.20

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Solution

The fourth proportional to 37,068.36, 51,158 and 21,155.20 is: 29,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,068.36 : 51,158 = 21,155.20 : x
  2. Step 2: Convert to fraction form
    37,068.36/51,158 = 21,155.20/x
  3. Step 3: Cross multiply
    37,068.36x = 51,158 × 21,155.20
  4. Step 4: Simplify right side
    37,068.36x = 1,082,257,721.60
  5. Step 5: Solve for x
    x = 1,082,257,721.60/37,068.36
  6. Step 6: Final answer
    x = 29,196.27

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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.