Home / 22,384.30-30,887.58-13,430.56

Finding the Fourth Proportional to 22,384.30, 30,887.58 and 13,430.56

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Solution

The fourth proportional to 22,384.30, 30,887.58 and 13,430.56 is: 18,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,384.30 : 30,887.58 = 13,430.56 : x
  2. Step 2: Convert to fraction form
    22,384.30/30,887.58 = 13,430.56/x
  3. Step 3: Cross multiply
    22,384.30x = 30,887.58 × 13,430.56
  4. Step 4: Simplify right side
    22,384.30x = 414,837,496.44
  5. Step 5: Solve for x
    x = 414,837,496.44/22,384.30
  6. Step 6: Final answer
    x = 18,532.52

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1.5x scale

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.