Home / 22,200.51-30,637.31-13,253.21

Finding the Fourth Proportional to 22,200.51, 30,637.31 and 13,253.21

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Solution

The fourth proportional to 22,200.51, 30,637.31 and 13,253.21 is: 18,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.51 : 30,637.31 = 13,253.21 : x
  2. Step 2: Convert to fraction form
    22,200.51/30,637.31 = 13,253.21/x
  3. Step 3: Cross multiply
    22,200.51x = 30,637.31 × 13,253.21
  4. Step 4: Simplify right side
    22,200.51x = 406,042,483.81
  5. Step 5: Solve for x
    x = 406,042,483.81/22,200.51
  6. Step 6: Final answer
    x = 18,289.78

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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.