Home / 20,810.31-31,214.55-6,018.90

Finding the Fourth Proportional to 20,810.31, 31,214.55 and 6,018.90

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Solution

The fourth proportional to 20,810.31, 31,214.55 and 6,018.90 is: 9,028.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.31 : 31,214.55 = 6,018.90 : x
  2. Step 2: Convert to fraction form
    20,810.31/31,214.55 = 6,018.90/x
  3. Step 3: Cross multiply
    20,810.31x = 31,214.55 × 6,018.90
  4. Step 4: Simplify right side
    20,810.31x = 187,877,255.00
  5. Step 5: Solve for x
    x = 187,877,255.00/20,810.31
  6. Step 6: Final answer
    x = 9,028.09

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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.