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Finding the Fourth Proportional to 39,921, 59,881.26 and 10,338.76

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Solution

The fourth proportional to 39,921, 59,881.26 and 10,338.76 is: 15,508.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921 : 59,881.26 = 10,338.76 : x
  2. Step 2: Convert to fraction form
    39,921/59,881.26 = 10,338.76/x
  3. Step 3: Cross multiply
    39,921x = 59,881.26 × 10,338.76
  4. Step 4: Simplify right side
    39,921x = 619,097,975.64
  5. Step 5: Solve for x
    x = 619,097,975.64/39,921
  6. Step 6: Final answer
    x = 15,508.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.