Home / 20,478.02-30,717.02-5,686.94

Finding the Fourth Proportional to 20,478.02, 30,717.02 and 5,686.94

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Solution

The fourth proportional to 20,478.02, 30,717.02 and 5,686.94 is: 8,530.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478.02 : 30,717.02 = 5,686.94 : x
  2. Step 2: Convert to fraction form
    20,478.02/30,717.02 = 5,686.94/x
  3. Step 3: Cross multiply
    20,478.02x = 30,717.02 × 5,686.94
  4. Step 4: Simplify right side
    20,478.02x = 174,685,849.72
  5. Step 5: Solve for x
    x = 174,685,849.72/20,478.02
  6. Step 6: Final answer
    x = 8,530.41

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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.