Home / 22,020.78-30,386.67-13,066.74

Finding the Fourth Proportional to 22,020.78, 30,386.67 and 13,066.74

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Solution

The fourth proportional to 22,020.78, 30,386.67 and 13,066.74 is: 18,030.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,020.78 : 30,386.67 = 13,066.74 : x
  2. Step 2: Convert to fraction form
    22,020.78/30,386.67 = 13,066.74/x
  3. Step 3: Cross multiply
    22,020.78x = 30,386.67 × 13,066.74
  4. Step 4: Simplify right side
    22,020.78x = 397,054,716.36
  5. Step 5: Solve for x
    x = 397,054,716.36/22,020.78
  6. Step 6: Final answer
    x = 18,030.91

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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.