Home / 28,126.42-42,062.64-21,464.98

Finding the Fourth Proportional to 28,126.42, 42,062.64 and 21,464.98

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Solution

The fourth proportional to 28,126.42, 42,062.64 and 21,464.98 is: 32,100.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.42 : 42,062.64 = 21,464.98 : x
  2. Step 2: Convert to fraction form
    28,126.42/42,062.64 = 21,464.98/x
  3. Step 3: Cross multiply
    28,126.42x = 42,062.64 × 21,464.98
  4. Step 4: Simplify right side
    28,126.42x = 902,873,726.35
  5. Step 5: Solve for x
    x = 902,873,726.35/28,126.42
  6. Step 6: Final answer
    x = 32,100.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.