Home / 20,479.43-30,700.32-10,598.45

Finding the Fourth Proportional to 20,479.43, 30,700.32 and 10,598.45

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Solution

The fourth proportional to 20,479.43, 30,700.32 and 10,598.45 is: 15,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479.43 : 30,700.32 = 10,598.45 : x
  2. Step 2: Convert to fraction form
    20,479.43/30,700.32 = 10,598.45/x
  3. Step 3: Cross multiply
    20,479.43x = 30,700.32 × 10,598.45
  4. Step 4: Simplify right side
    20,479.43x = 325,375,613.26
  5. Step 5: Solve for x
    x = 325,375,613.26/20,479.43
  6. Step 6: Final answer
    x = 15,887.92

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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.