Home / 22,639.47-31,244.45-13,211.07

Finding the Fourth Proportional to 22,639.47, 31,244.45 and 13,211.07

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Solution

The fourth proportional to 22,639.47, 31,244.45 and 13,211.07 is: 18,232.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.47 : 31,244.45 = 13,211.07 : x
  2. Step 2: Convert to fraction form
    22,639.47/31,244.45 = 13,211.07/x
  3. Step 3: Cross multiply
    22,639.47x = 31,244.45 × 13,211.07
  4. Step 4: Simplify right side
    22,639.47x = 412,772,550.01
  5. Step 5: Solve for x
    x = 412,772,550.01/22,639.47
  6. Step 6: Final answer
    x = 18,232.43

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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.