Home / 37,118.71-51,223.19-20,985.75

Finding the Fourth Proportional to 37,118.71, 51,223.19 and 20,985.75

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Solution

The fourth proportional to 37,118.71, 51,223.19 and 20,985.75 is: 28,959.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,118.71 : 51,223.19 = 20,985.75 : x
  2. Step 2: Convert to fraction form
    37,118.71/51,223.19 = 20,985.75/x
  3. Step 3: Cross multiply
    37,118.71x = 51,223.19 × 20,985.75
  4. Step 4: Simplify right side
    37,118.71x = 1,074,956,738.52
  5. Step 5: Solve for x
    x = 1,074,956,738.52/37,118.71
  6. Step 6: Final answer
    x = 28,959.97

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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.