Home / 22,485.28-31,031.36-13,055.28

Finding the Fourth Proportional to 22,485.28, 31,031.36 and 13,055.28

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Solution

The fourth proportional to 22,485.28, 31,031.36 and 13,055.28 is: 18,017.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,485.28 : 31,031.36 = 13,055.28 : x
  2. Step 2: Convert to fraction form
    22,485.28/31,031.36 = 13,055.28/x
  3. Step 3: Cross multiply
    22,485.28x = 31,031.36 × 13,055.28
  4. Step 4: Simplify right side
    22,485.28x = 405,123,093.58
  5. Step 5: Solve for x
    x = 405,123,093.58/22,485.28
  6. Step 6: Final answer
    x = 18,017.26

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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.