Home / 20,875.18-31,309.73-6,080.13

Finding the Fourth Proportional to 20,875.18, 31,309.73 and 6,080.13

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Solution

The fourth proportional to 20,875.18, 31,309.73 and 6,080.13 is: 9,119.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.18 : 31,309.73 = 6,080.13 : x
  2. Step 2: Convert to fraction form
    20,875.18/31,309.73 = 6,080.13/x
  3. Step 3: Cross multiply
    20,875.18x = 31,309.73 × 6,080.13
  4. Step 4: Simplify right side
    20,875.18x = 190,367,228.66
  5. Step 5: Solve for x
    x = 190,367,228.66/20,875.18
  6. Step 6: Final answer
    x = 9,119.31

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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.