Home / 37,121.95-51,227.67-20,989

Finding the Fourth Proportional to 37,121.95, 51,227.67 and 20,989

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Solution

The fourth proportional to 37,121.95, 51,227.67 and 20,989 is: 28,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,121.95 : 51,227.67 = 20,989 : x
  2. Step 2: Convert to fraction form
    37,121.95/51,227.67 = 20,989/x
  3. Step 3: Cross multiply
    37,121.95x = 51,227.67 × 20,989
  4. Step 4: Simplify right side
    37,121.95x = 1,075,217,565.63
  5. Step 5: Solve for x
    x = 1,075,217,565.63/37,121.95
  6. Step 6: Final answer
    x = 28,964.47

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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.