Home / 28,802.11-43,150.53-20,885.01

Finding the Fourth Proportional to 28,802.11, 43,150.53 and 20,885.01

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Solution

The fourth proportional to 28,802.11, 43,150.53 and 20,885.01 is: 31,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802.11 : 43,150.53 = 20,885.01 : x
  2. Step 2: Convert to fraction form
    28,802.11/43,150.53 = 20,885.01/x
  3. Step 3: Cross multiply
    28,802.11x = 43,150.53 × 20,885.01
  4. Step 4: Simplify right side
    28,802.11x = 901,199,250.56
  5. Step 5: Solve for x
    x = 901,199,250.56/28,802.11
  6. Step 6: Final answer
    x = 31,289.35

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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.