Home / 37,886.22-52,281.69-20,890.20

Finding the Fourth Proportional to 37,886.22, 52,281.69 and 20,890.20

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Solution

The fourth proportional to 37,886.22, 52,281.69 and 20,890.20 is: 28,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,886.22 : 52,281.69 = 20,890.20 : x
  2. Step 2: Convert to fraction form
    37,886.22/52,281.69 = 20,890.20/x
  3. Step 3: Cross multiply
    37,886.22x = 52,281.69 × 20,890.20
  4. Step 4: Simplify right side
    37,886.22x = 1,092,174,960.44
  5. Step 5: Solve for x
    x = 1,092,174,960.44/37,886.22
  6. Step 6: Final answer
    x = 28,827.76

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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.