Home / 22,212.89-30,633.95-18,430.07

Finding the Fourth Proportional to 22,212.89, 30,633.95 and 18,430.07

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Solution

The fourth proportional to 22,212.89, 30,633.95 and 18,430.07 is: 25,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.89 : 30,633.95 = 18,430.07 : x
  2. Step 2: Convert to fraction form
    22,212.89/30,633.95 = 18,430.07/x
  3. Step 3: Cross multiply
    22,212.89x = 30,633.95 × 18,430.07
  4. Step 4: Simplify right side
    22,212.89x = 564,585,597.56
  5. Step 5: Solve for x
    x = 564,585,597.56/22,212.89
  6. Step 6: Final answer
    x = 25,417.03

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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.