Home / 15,671.95-23,507.31-3,985.47

Finding the Fourth Proportional to 15,671.95, 23,507.31 and 3,985.47

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Solution

The fourth proportional to 15,671.95, 23,507.31 and 3,985.47 is: 5,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671.95 : 23,507.31 = 3,985.47 : x
  2. Step 2: Convert to fraction form
    15,671.95/23,507.31 = 3,985.47/x
  3. Step 3: Cross multiply
    15,671.95x = 23,507.31 × 3,985.47
  4. Step 4: Simplify right side
    15,671.95x = 93,687,693.73
  5. Step 5: Solve for x
    x = 93,687,693.73/15,671.95
  6. Step 6: Final answer
    x = 5,978.05

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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.