Home / 45,005.52-67,508.28-13,840.50

Finding the Fourth Proportional to 45,005.52, 67,508.28 and 13,840.50

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Solution

The fourth proportional to 45,005.52, 67,508.28 and 13,840.50 is: 20,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,005.52 : 67,508.28 = 13,840.50 : x
  2. Step 2: Convert to fraction form
    45,005.52/67,508.28 = 13,840.50/x
  3. Step 3: Cross multiply
    45,005.52x = 67,508.28 × 13,840.50
  4. Step 4: Simplify right side
    45,005.52x = 934,348,349.34
  5. Step 5: Solve for x
    x = 934,348,349.34/45,005.52
  6. Step 6: Final answer
    x = 20,760.75

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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.