Home / 20,515.32-30,762.02-10,630.08

Finding the Fourth Proportional to 20,515.32, 30,762.02 and 10,630.08

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Solution

The fourth proportional to 20,515.32, 30,762.02 and 10,630.08 is: 15,939.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.32 : 30,762.02 = 10,630.08 : x
  2. Step 2: Convert to fraction form
    20,515.32/30,762.02 = 10,630.08/x
  3. Step 3: Cross multiply
    20,515.32x = 30,762.02 × 10,630.08
  4. Step 4: Simplify right side
    20,515.32x = 327,002,733.56
  5. Step 5: Solve for x
    x = 327,002,733.56/20,515.32
  6. Step 6: Final answer
    x = 15,939.44

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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.