Home / 20,004.70-30,010.65-8,319.10

Finding the Fourth Proportional to 20,004.70, 30,010.65 and 8,319.10

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Solution

The fourth proportional to 20,004.70, 30,010.65 and 8,319.10 is: 12,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.70 : 30,010.65 = 8,319.10 : x
  2. Step 2: Convert to fraction form
    20,004.70/30,010.65 = 8,319.10/x
  3. Step 3: Cross multiply
    20,004.70x = 30,010.65 × 8,319.10
  4. Step 4: Simplify right side
    20,004.70x = 249,661,598.42
  5. Step 5: Solve for x
    x = 249,661,598.42/20,004.70
  6. Step 6: Final answer
    x = 12,480.15

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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.