Home / 57,631.40-86,447.10-15,511.58

Finding the Fourth Proportional to 57,631.40, 86,447.10 and 15,511.58

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Solution

The fourth proportional to 57,631.40, 86,447.10 and 15,511.58 is: 23,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,631.40 : 86,447.10 = 15,511.58 : x
  2. Step 2: Convert to fraction form
    57,631.40/86,447.10 = 15,511.58/x
  3. Step 3: Cross multiply
    57,631.40x = 86,447.10 × 15,511.58
  4. Step 4: Simplify right side
    57,631.40x = 1,340,930,675.18
  5. Step 5: Solve for x
    x = 1,340,930,675.18/57,631.40
  6. Step 6: Final answer
    x = 23,267.36

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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.