Home / 20,077.04-30,116.12-9,686.36

Finding the Fourth Proportional to 20,077.04, 30,116.12 and 9,686.36

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Solution

The fourth proportional to 20,077.04, 30,116.12 and 9,686.36 is: 14,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.04 : 30,116.12 = 9,686.36 : x
  2. Step 2: Convert to fraction form
    20,077.04/30,116.12 = 9,686.36/x
  3. Step 3: Cross multiply
    20,077.04x = 30,116.12 × 9,686.36
  4. Step 4: Simplify right side
    20,077.04x = 291,715,580.12
  5. Step 5: Solve for x
    x = 291,715,580.12/20,077.04
  6. Step 6: Final answer
    x = 14,529.81

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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.