Home / 20,320.50-30,454.02-8,619.24

Finding the Fourth Proportional to 20,320.50, 30,454.02 and 8,619.24

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Solution

The fourth proportional to 20,320.50, 30,454.02 and 8,619.24 is: 12,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.50 : 30,454.02 = 8,619.24 : x
  2. Step 2: Convert to fraction form
    20,320.50/30,454.02 = 8,619.24/x
  3. Step 3: Cross multiply
    20,320.50x = 30,454.02 × 8,619.24
  4. Step 4: Simplify right side
    20,320.50x = 262,490,507.34
  5. Step 5: Solve for x
    x = 262,490,507.34/20,320.50
  6. Step 6: Final answer
    x = 12,917.52

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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.