Home / 30,651.48-42,299.02-17,222.76

Finding the Fourth Proportional to 30,651.48, 42,299.02 and 17,222.76

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Solution

The fourth proportional to 30,651.48, 42,299.02 and 17,222.76 is: 23,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.48 : 42,299.02 = 17,222.76 : x
  2. Step 2: Convert to fraction form
    30,651.48/42,299.02 = 17,222.76/x
  3. Step 3: Cross multiply
    30,651.48x = 42,299.02 × 17,222.76
  4. Step 4: Simplify right side
    30,651.48x = 728,505,869.70
  5. Step 5: Solve for x
    x = 728,505,869.70/30,651.48
  6. Step 6: Final answer
    x = 23,767.40

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Half scale
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Double scale
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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.