Home / 20,985.06-31,508.61-14,008.54

Finding the Fourth Proportional to 20,985.06, 31,508.61 and 14,008.54

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Solution

The fourth proportional to 20,985.06, 31,508.61 and 14,008.54 is: 21,033.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985.06 : 31,508.61 = 14,008.54 : x
  2. Step 2: Convert to fraction form
    20,985.06/31,508.61 = 14,008.54/x
  3. Step 3: Cross multiply
    20,985.06x = 31,508.61 × 14,008.54
  4. Step 4: Simplify right side
    20,985.06x = 441,389,623.53
  5. Step 5: Solve for x
    x = 441,389,623.53/20,985.06
  6. Step 6: Final answer
    x = 21,033.52

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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.