Home / 20,368.08-30,541.71-8,518.64

Finding the Fourth Proportional to 20,368.08, 30,541.71 and 8,518.64

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Solution

The fourth proportional to 20,368.08, 30,541.71 and 8,518.64 is: 12,773.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368.08 : 30,541.71 = 8,518.64 : x
  2. Step 2: Convert to fraction form
    20,368.08/30,541.71 = 8,518.64/x
  3. Step 3: Cross multiply
    20,368.08x = 30,541.71 × 8,518.64
  4. Step 4: Simplify right side
    20,368.08x = 260,173,921.49
  5. Step 5: Solve for x
    x = 260,173,921.49/20,368.08
  6. Step 6: Final answer
    x = 12,773.61

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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.