Home / 28,222.83-42,325.61-19,513.71

Finding the Fourth Proportional to 28,222.83, 42,325.61 and 19,513.71

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Solution

The fourth proportional to 28,222.83, 42,325.61 and 19,513.71 is: 29,264.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.83 : 42,325.61 = 19,513.71 : x
  2. Step 2: Convert to fraction form
    28,222.83/42,325.61 = 19,513.71/x
  3. Step 3: Cross multiply
    28,222.83x = 42,325.61 × 19,513.71
  4. Step 4: Simplify right side
    28,222.83x = 825,929,581.54
  5. Step 5: Solve for x
    x = 825,929,581.54/28,222.83
  6. Step 6: Final answer
    x = 29,264.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.