Home / 18,531.32-25,571.30-10,572

Finding the Fourth Proportional to 18,531.32, 25,571.30 and 10,572

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Solution

The fourth proportional to 18,531.32, 25,571.30 and 10,572 is: 14,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.32 : 25,571.30 = 10,572 : x
  2. Step 2: Convert to fraction form
    18,531.32/25,571.30 = 10,572/x
  3. Step 3: Cross multiply
    18,531.32x = 25,571.30 × 10,572
  4. Step 4: Simplify right side
    18,531.32x = 270,339,730.74
  5. Step 5: Solve for x
    x = 270,339,730.74/18,531.32
  6. Step 6: Final answer
    x = 14,588.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.