Home / 28,998.24-40,017.60-16,422.72

Finding the Fourth Proportional to 28,998.24, 40,017.60 and 16,422.72

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Solution

The fourth proportional to 28,998.24, 40,017.60 and 16,422.72 is: 22,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.24 : 40,017.60 = 16,422.72 : x
  2. Step 2: Convert to fraction form
    28,998.24/40,017.60 = 16,422.72/x
  3. Step 3: Cross multiply
    28,998.24x = 40,017.60 × 16,422.72
  4. Step 4: Simplify right side
    28,998.24x = 657,197,839.87
  5. Step 5: Solve for x
    x = 657,197,839.87/28,998.24
  6. Step 6: Final answer
    x = 22,663.37

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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.