Home / 22,678.37-31,291.58-13,245.11

Finding the Fourth Proportional to 22,678.37, 31,291.58 and 13,245.11

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Solution

The fourth proportional to 22,678.37, 31,291.58 and 13,245.11 is: 18,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.37 : 31,291.58 = 13,245.11 : x
  2. Step 2: Convert to fraction form
    22,678.37/31,291.58 = 13,245.11/x
  3. Step 3: Cross multiply
    22,678.37x = 31,291.58 × 13,245.11
  4. Step 4: Simplify right side
    22,678.37x = 414,460,419.17
  5. Step 5: Solve for x
    x = 414,460,419.17/22,678.37
  6. Step 6: Final answer
    x = 18,275.58

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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.