Home / 45,298.20-67,958.10-21,905.40

Finding the Fourth Proportional to 45,298.20, 67,958.10 and 21,905.40

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Solution

The fourth proportional to 45,298.20, 67,958.10 and 21,905.40 is: 32,863.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,298.20 : 67,958.10 = 21,905.40 : x
  2. Step 2: Convert to fraction form
    45,298.20/67,958.10 = 21,905.40/x
  3. Step 3: Cross multiply
    45,298.20x = 67,958.10 × 21,905.40
  4. Step 4: Simplify right side
    45,298.20x = 1,488,649,363.74
  5. Step 5: Solve for x
    x = 1,488,649,363.74/45,298.20
  6. Step 6: Final answer
    x = 32,863.32

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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.