Home / 37,120.95-51,226.29-20,988

Finding the Fourth Proportional to 37,120.95, 51,226.29 and 20,988

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Solution

The fourth proportional to 37,120.95, 51,226.29 and 20,988 is: 28,963.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,120.95 : 51,226.29 = 20,988 : x
  2. Step 2: Convert to fraction form
    37,120.95/51,226.29 = 20,988/x
  3. Step 3: Cross multiply
    37,120.95x = 51,226.29 × 20,988
  4. Step 4: Simplify right side
    37,120.95x = 1,075,137,374.52
  5. Step 5: Solve for x
    x = 1,075,137,374.52/37,120.95
  6. Step 6: Final answer
    x = 28,963.09

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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.