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Finding the Fourth Proportional to 38,326.60, 52,890.63 and 21,559.60

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Solution

The fourth proportional to 38,326.60, 52,890.63 and 21,559.60 is: 29,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,326.60 : 52,890.63 = 21,559.60 : x
  2. Step 2: Convert to fraction form
    38,326.60/52,890.63 = 21,559.60/x
  3. Step 3: Cross multiply
    38,326.60x = 52,890.63 × 21,559.60
  4. Step 4: Simplify right side
    38,326.60x = 1,140,300,826.55
  5. Step 5: Solve for x
    x = 1,140,300,826.55/38,326.60
  6. Step 6: Final answer
    x = 29,752.20

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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.