Home / 15,671.88-23,508.54-3,985.20

Finding the Fourth Proportional to 15,671.88, 23,508.54 and 3,985.20

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Solution

The fourth proportional to 15,671.88, 23,508.54 and 3,985.20 is: 5,977.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671.88 : 23,508.54 = 3,985.20 : x
  2. Step 2: Convert to fraction form
    15,671.88/23,508.54 = 3,985.20/x
  3. Step 3: Cross multiply
    15,671.88x = 23,508.54 × 3,985.20
  4. Step 4: Simplify right side
    15,671.88x = 93,686,233.61
  5. Step 5: Solve for x
    x = 93,686,233.61/15,671.88
  6. Step 6: Final answer
    x = 5,977.98

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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.