Home / 20,869.04-31,303.02-7,018.04

Finding the Fourth Proportional to 20,869.04, 31,303.02 and 7,018.04

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Solution

The fourth proportional to 20,869.04, 31,303.02 and 7,018.04 is: 10,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.04 : 31,303.02 = 7,018.04 : x
  2. Step 2: Convert to fraction form
    20,869.04/31,303.02 = 7,018.04/x
  3. Step 3: Cross multiply
    20,869.04x = 31,303.02 × 7,018.04
  4. Step 4: Simplify right side
    20,869.04x = 219,685,846.48
  5. Step 5: Solve for x
    x = 219,685,846.48/20,869.04
  6. Step 6: Final answer
    x = 10,526.88

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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.