Home / 20,036.90-30,057.36-6,887.54

Finding the Fourth Proportional to 20,036.90, 30,057.36 and 6,887.54

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Solution

The fourth proportional to 20,036.90, 30,057.36 and 6,887.54 is: 10,332.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.90 : 30,057.36 = 6,887.54 : x
  2. Step 2: Convert to fraction form
    20,036.90/30,057.36 = 6,887.54/x
  3. Step 3: Cross multiply
    20,036.90x = 30,057.36 × 6,887.54
  4. Step 4: Simplify right side
    20,036.90x = 207,021,269.29
  5. Step 5: Solve for x
    x = 207,021,269.29/20,036.90
  6. Step 6: Final answer
    x = 10,332.00

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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.