Home / 37,657.76-51,966.24-20,890.40

Finding the Fourth Proportional to 37,657.76, 51,966.24 and 20,890.40

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Solution

The fourth proportional to 37,657.76, 51,966.24 and 20,890.40 is: 28,827.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,657.76 : 51,966.24 = 20,890.40 : x
  2. Step 2: Convert to fraction form
    37,657.76/51,966.24 = 20,890.40/x
  3. Step 3: Cross multiply
    37,657.76x = 51,966.24 × 20,890.40
  4. Step 4: Simplify right side
    37,657.76x = 1,085,595,540.10
  5. Step 5: Solve for x
    x = 1,085,595,540.10/37,657.76
  6. Step 6: Final answer
    x = 28,827.94

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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.