Home / 30,589.65-45,901.19-11,870.43

Finding the Fourth Proportional to 30,589.65, 45,901.19 and 11,870.43

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Solution

The fourth proportional to 30,589.65, 45,901.19 and 11,870.43 is: 17,812.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,589.65 : 45,901.19 = 11,870.43 : x
  2. Step 2: Convert to fraction form
    30,589.65/45,901.19 = 11,870.43/x
  3. Step 3: Cross multiply
    30,589.65x = 45,901.19 × 11,870.43
  4. Step 4: Simplify right side
    30,589.65x = 544,866,720.36
  5. Step 5: Solve for x
    x = 544,866,720.36/30,589.65
  6. Step 6: Final answer
    x = 17,812.13

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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.