Home / 34,830.64-48,068.10-20,491.21

Finding the Fourth Proportional to 34,830.64, 48,068.10 and 20,491.21

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Solution

The fourth proportional to 34,830.64, 48,068.10 and 20,491.21 is: 28,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,830.64 : 48,068.10 = 20,491.21 : x
  2. Step 2: Convert to fraction form
    34,830.64/48,068.10 = 20,491.21/x
  3. Step 3: Cross multiply
    34,830.64x = 48,068.10 × 20,491.21
  4. Step 4: Simplify right side
    34,830.64x = 984,973,531.40
  5. Step 5: Solve for x
    x = 984,973,531.40/34,830.64
  6. Step 6: Final answer
    x = 28,278.94

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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.