Home / 37,887.12-52,281.96-20,890.56

Finding the Fourth Proportional to 37,887.12, 52,281.96 and 20,890.56

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Solution

The fourth proportional to 37,887.12, 52,281.96 and 20,890.56 is: 28,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,887.12 : 52,281.96 = 20,890.56 : x
  2. Step 2: Convert to fraction form
    37,887.12/52,281.96 = 20,890.56/x
  3. Step 3: Cross multiply
    37,887.12x = 52,281.96 × 20,890.56
  4. Step 4: Simplify right side
    37,887.12x = 1,092,199,422.30
  5. Step 5: Solve for x
    x = 1,092,199,422.30/37,887.12
  6. Step 6: Final answer
    x = 28,827.72

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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.