Home / 20,018.74-30,026.89-5,978.81

Finding the Fourth Proportional to 20,018.74, 30,026.89 and 5,978.81

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Solution

The fourth proportional to 20,018.74, 30,026.89 and 5,978.81 is: 8,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.74 : 30,026.89 = 5,978.81 : x
  2. Step 2: Convert to fraction form
    20,018.74/30,026.89 = 5,978.81/x
  3. Step 3: Cross multiply
    20,018.74x = 30,026.89 × 5,978.81
  4. Step 4: Simplify right side
    20,018.74x = 179,525,070.20
  5. Step 5: Solve for x
    x = 179,525,070.20/20,018.74
  6. Step 6: Final answer
    x = 8,967.85

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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.