Home / 20,625.36-30,939.28-5,835.40

Finding the Fourth Proportional to 20,625.36, 30,939.28 and 5,835.40

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Solution

The fourth proportional to 20,625.36, 30,939.28 and 5,835.40 is: 8,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.36 : 30,939.28 = 5,835.40 : x
  2. Step 2: Convert to fraction form
    20,625.36/30,939.28 = 5,835.40/x
  3. Step 3: Cross multiply
    20,625.36x = 30,939.28 × 5,835.40
  4. Step 4: Simplify right side
    20,625.36x = 180,543,074.51
  5. Step 5: Solve for x
    x = 180,543,074.51/20,625.36
  6. Step 6: Final answer
    x = 8,753.45

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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.