Home / 22,212.99-30,634.07-18,430.15

Finding the Fourth Proportional to 22,212.99, 30,634.07 and 18,430.15

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Solution

The fourth proportional to 22,212.99, 30,634.07 and 18,430.15 is: 25,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.99 : 30,634.07 = 18,430.15 : x
  2. Step 2: Convert to fraction form
    22,212.99/30,634.07 = 18,430.15/x
  3. Step 3: Cross multiply
    22,212.99x = 30,634.07 × 18,430.15
  4. Step 4: Simplify right side
    22,212.99x = 564,590,505.21
  5. Step 5: Solve for x
    x = 564,590,505.21/22,212.99
  6. Step 6: Final answer
    x = 25,417.13

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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.