Home / 36,018.63-53,990.28-20,200.59

Finding the Fourth Proportional to 36,018.63, 53,990.28 and 20,200.59

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Solution

The fourth proportional to 36,018.63, 53,990.28 and 20,200.59 is: 30,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,018.63 : 53,990.28 = 20,200.59 : x
  2. Step 2: Convert to fraction form
    36,018.63/53,990.28 = 20,200.59/x
  3. Step 3: Cross multiply
    36,018.63x = 53,990.28 × 20,200.59
  4. Step 4: Simplify right side
    36,018.63x = 1,090,635,510.27
  5. Step 5: Solve for x
    x = 1,090,635,510.27/36,018.63
  6. Step 6: Final answer
    x = 30,279.76

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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.