Home / 37,139.84-51,260.28-21,222.80

Finding the Fourth Proportional to 37,139.84, 51,260.28 and 21,222.80

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Solution

The fourth proportional to 37,139.84, 51,260.28 and 21,222.80 is: 29,291.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,139.84 : 51,260.28 = 21,222.80 : x
  2. Step 2: Convert to fraction form
    37,139.84/51,260.28 = 21,222.80/x
  3. Step 3: Cross multiply
    37,139.84x = 51,260.28 × 21,222.80
  4. Step 4: Simplify right side
    37,139.84x = 1,087,886,670.38
  5. Step 5: Solve for x
    x = 1,087,886,670.38/37,139.84
  6. Step 6: Final answer
    x = 29,291.64

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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.