Home / 28,763.28-43,142.09-9,041.31

Finding the Fourth Proportional to 28,763.28, 43,142.09 and 9,041.31

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Solution

The fourth proportional to 28,763.28, 43,142.09 and 9,041.31 is: 13,561.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.28 : 43,142.09 = 9,041.31 : x
  2. Step 2: Convert to fraction form
    28,763.28/43,142.09 = 9,041.31/x
  3. Step 3: Cross multiply
    28,763.28x = 43,142.09 × 9,041.31
  4. Step 4: Simplify right side
    28,763.28x = 390,060,964.53
  5. Step 5: Solve for x
    x = 390,060,964.53/28,763.28
  6. Step 6: Final answer
    x = 13,561.07

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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.