Home / 22,130.65-30,538.11-13,055.82

Finding the Fourth Proportional to 22,130.65, 30,538.11 and 13,055.82

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Solution

The fourth proportional to 22,130.65, 30,538.11 and 13,055.82 is: 18,015.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.65 : 30,538.11 = 13,055.82 : x
  2. Step 2: Convert to fraction form
    22,130.65/30,538.11 = 13,055.82/x
  3. Step 3: Cross multiply
    22,130.65x = 30,538.11 × 13,055.82
  4. Step 4: Simplify right side
    22,130.65x = 398,700,067.30
  5. Step 5: Solve for x
    x = 398,700,067.30/22,130.65
  6. Step 6: Final answer
    x = 18,015.74

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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.