Home / 37,886.33-52,280.34-20,890.91

Finding the Fourth Proportional to 37,886.33, 52,280.34 and 20,890.91

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Solution

The fourth proportional to 37,886.33, 52,280.34 and 20,890.91 is: 28,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,886.33 : 52,280.34 = 20,890.91 : x
  2. Step 2: Convert to fraction form
    37,886.33/52,280.34 = 20,890.91/x
  3. Step 3: Cross multiply
    37,886.33x = 52,280.34 × 20,890.91
  4. Step 4: Simplify right side
    37,886.33x = 1,092,183,930.07
  5. Step 5: Solve for x
    x = 1,092,183,930.07/37,886.33
  6. Step 6: Final answer
    x = 28,827.91

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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.