Home / 20,278.04-30,417.90-6,960.19

Finding the Fourth Proportional to 20,278.04, 30,417.90 and 6,960.19

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Solution

The fourth proportional to 20,278.04, 30,417.90 and 6,960.19 is: 10,440.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278.04 : 30,417.90 = 6,960.19 : x
  2. Step 2: Convert to fraction form
    20,278.04/30,417.90 = 6,960.19/x
  3. Step 3: Cross multiply
    20,278.04x = 30,417.90 × 6,960.19
  4. Step 4: Simplify right side
    20,278.04x = 211,714,287.36
  5. Step 5: Solve for x
    x = 211,714,287.36/20,278.04
  6. Step 6: Final answer
    x = 10,440.57

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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.