Home / 22,280.63-30,747.26-13,328.51

Finding the Fourth Proportional to 22,280.63, 30,747.26 and 13,328.51

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Solution

The fourth proportional to 22,280.63, 30,747.26 and 13,328.51 is: 18,393.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.63 : 30,747.26 = 13,328.51 : x
  2. Step 2: Convert to fraction form
    22,280.63/30,747.26 = 13,328.51/x
  3. Step 3: Cross multiply
    22,280.63x = 30,747.26 × 13,328.51
  4. Step 4: Simplify right side
    22,280.63x = 409,815,041.97
  5. Step 5: Solve for x
    x = 409,815,041.97/22,280.63
  6. Step 6: Final answer
    x = 18,393.34

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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.