Home / 37,041.32-51,120-21,126.98

Finding the Fourth Proportional to 37,041.32, 51,120 and 21,126.98

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Solution

The fourth proportional to 37,041.32, 51,120 and 21,126.98 is: 29,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,041.32 : 51,120 = 21,126.98 : x
  2. Step 2: Convert to fraction form
    37,041.32/51,120 = 21,126.98/x
  3. Step 3: Cross multiply
    37,041.32x = 51,120 × 21,126.98
  4. Step 4: Simplify right side
    37,041.32x = 1,080,010,962
  5. Step 5: Solve for x
    x = 1,080,010,962/37,041.32
  6. Step 6: Final answer
    x = 29,156.93

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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.