Home / 22,145.64-30,559.14-12,712.20

Finding the Fourth Proportional to 22,145.64, 30,559.14 and 12,712.20

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Solution

The fourth proportional to 22,145.64, 30,559.14 and 12,712.20 is: 17,541.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145.64 : 30,559.14 = 12,712.20 : x
  2. Step 2: Convert to fraction form
    22,145.64/30,559.14 = 12,712.20/x
  3. Step 3: Cross multiply
    22,145.64x = 30,559.14 × 12,712.20
  4. Step 4: Simplify right side
    22,145.64x = 388,473,899.51
  5. Step 5: Solve for x
    x = 388,473,899.51/22,145.64
  6. Step 6: Final answer
    x = 17,541.78

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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.