Home / 45,339.90-67,942.89-21,938.46

Finding the Fourth Proportional to 45,339.90, 67,942.89 and 21,938.46

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Solution

The fourth proportional to 45,339.90, 67,942.89 and 21,938.46 is: 32,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,339.90 : 67,942.89 = 21,938.46 : x
  2. Step 2: Convert to fraction form
    45,339.90/67,942.89 = 21,938.46/x
  3. Step 3: Cross multiply
    45,339.90x = 67,942.89 × 21,938.46
  4. Step 4: Simplify right side
    45,339.90x = 1,490,562,374.55
  5. Step 5: Solve for x
    x = 1,490,562,374.55/45,339.90
  6. Step 6: Final answer
    x = 32,875.29

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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.