Home / 20,898.02-31,343.78-6,102.96

Finding the Fourth Proportional to 20,898.02, 31,343.78 and 6,102.96

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Solution

The fourth proportional to 20,898.02, 31,343.78 and 6,102.96 is: 9,153.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.02 : 31,343.78 = 6,102.96 : x
  2. Step 2: Convert to fraction form
    20,898.02/31,343.78 = 6,102.96/x
  3. Step 3: Cross multiply
    20,898.02x = 31,343.78 × 6,102.96
  4. Step 4: Simplify right side
    20,898.02x = 191,289,805.07
  5. Step 5: Solve for x
    x = 191,289,805.07/20,898.02
  6. Step 6: Final answer
    x = 9,153.49

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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.