Home / 45,005.14-67,508.28-13,840.36

Finding the Fourth Proportional to 45,005.14, 67,508.28 and 13,840.36

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Solution

The fourth proportional to 45,005.14, 67,508.28 and 13,840.36 is: 20,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,005.14 : 67,508.28 = 13,840.36 : x
  2. Step 2: Convert to fraction form
    45,005.14/67,508.28 = 13,840.36/x
  3. Step 3: Cross multiply
    45,005.14x = 67,508.28 × 13,840.36
  4. Step 4: Simplify right side
    45,005.14x = 934,338,898.18
  5. Step 5: Solve for x
    x = 934,338,898.18/45,005.14
  6. Step 6: Final answer
    x = 20,760.72

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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.