Home / 22,289.51-30,758.60-13,331.72

Finding the Fourth Proportional to 22,289.51, 30,758.60 and 13,331.72

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Solution

The fourth proportional to 22,289.51, 30,758.60 and 13,331.72 is: 18,397.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,289.51 : 30,758.60 = 13,331.72 : x
  2. Step 2: Convert to fraction form
    22,289.51/30,758.60 = 13,331.72/x
  3. Step 3: Cross multiply
    22,289.51x = 30,758.60 × 13,331.72
  4. Step 4: Simplify right side
    22,289.51x = 410,065,153.02
  5. Step 5: Solve for x
    x = 410,065,153.02/22,289.51
  6. Step 6: Final answer
    x = 18,397.22

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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.