Home / 22,206.24-30,642.75-12,643.56

Finding the Fourth Proportional to 22,206.24, 30,642.75 and 12,643.56

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Solution

The fourth proportional to 22,206.24, 30,642.75 and 12,643.56 is: 17,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,206.24 : 30,642.75 = 12,643.56 : x
  2. Step 2: Convert to fraction form
    22,206.24/30,642.75 = 12,643.56/x
  3. Step 3: Cross multiply
    22,206.24x = 30,642.75 × 12,643.56
  4. Step 4: Simplify right side
    22,206.24x = 387,433,448.19
  5. Step 5: Solve for x
    x = 387,433,448.19/22,206.24
  6. Step 6: Final answer
    x = 17,447.05

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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.