Home / 19,622.40-26,985.60-18,067.20

Finding the Fourth Proportional to 19,622.40, 26,985.60 and 18,067.20

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Solution

The fourth proportional to 19,622.40, 26,985.60 and 18,067.20 is: 24,846.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,622.40 : 26,985.60 = 18,067.20 : x
  2. Step 2: Convert to fraction form
    19,622.40/26,985.60 = 18,067.20/x
  3. Step 3: Cross multiply
    19,622.40x = 26,985.60 × 18,067.20
  4. Step 4: Simplify right side
    19,622.40x = 487,554,232.32
  5. Step 5: Solve for x
    x = 487,554,232.32/19,622.40
  6. Step 6: Final answer
    x = 24,846.82

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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.