Home / 28,283.71-42,443.46-15,811.94

Finding the Fourth Proportional to 28,283.71, 42,443.46 and 15,811.94

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Solution

The fourth proportional to 28,283.71, 42,443.46 and 15,811.94 is: 23,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283.71 : 42,443.46 = 15,811.94 : x
  2. Step 2: Convert to fraction form
    28,283.71/42,443.46 = 15,811.94/x
  3. Step 3: Cross multiply
    28,283.71x = 42,443.46 × 15,811.94
  4. Step 4: Simplify right side
    28,283.71x = 671,113,442.91
  5. Step 5: Solve for x
    x = 671,113,442.91/28,283.71
  6. Step 6: Final answer
    x = 23,727.91

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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.