Home / 20,035.90-30,053.51-8,187.06

Finding the Fourth Proportional to 20,035.90, 30,053.51 and 8,187.06

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Solution

The fourth proportional to 20,035.90, 30,053.51 and 8,187.06 is: 12,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.90 : 30,053.51 = 8,187.06 : x
  2. Step 2: Convert to fraction form
    20,035.90/30,053.51 = 8,187.06/x
  3. Step 3: Cross multiply
    20,035.90x = 30,053.51 × 8,187.06
  4. Step 4: Simplify right side
    20,035.90x = 246,049,773.51
  5. Step 5: Solve for x
    x = 246,049,773.51/20,035.90
  6. Step 6: Final answer
    x = 12,280.45

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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.