Home / 45,009.60-67,472.66-15,420.41

Finding the Fourth Proportional to 45,009.60, 67,472.66 and 15,420.41

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Solution

The fourth proportional to 45,009.60, 67,472.66 and 15,420.41 is: 23,116.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,009.60 : 67,472.66 = 15,420.41 : x
  2. Step 2: Convert to fraction form
    45,009.60/67,472.66 = 15,420.41/x
  3. Step 3: Cross multiply
    45,009.60x = 67,472.66 × 15,420.41
  4. Step 4: Simplify right side
    45,009.60x = 1,040,455,666.53
  5. Step 5: Solve for x
    x = 1,040,455,666.53/45,009.60
  6. Step 6: Final answer
    x = 23,116.31

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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.