Home / 21,938.10-32,906.85-5,298.05

Finding the Fourth Proportional to 21,938.10, 32,906.85 and 5,298.05

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Solution

The fourth proportional to 21,938.10, 32,906.85 and 5,298.05 is: 7,947.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,938.10 : 32,906.85 = 5,298.05 : x
  2. Step 2: Convert to fraction form
    21,938.10/32,906.85 = 5,298.05/x
  3. Step 3: Cross multiply
    21,938.10x = 32,906.85 × 5,298.05
  4. Step 4: Simplify right side
    21,938.10x = 174,341,972.11
  5. Step 5: Solve for x
    x = 174,341,972.11/21,938.10
  6. Step 6: Final answer
    x = 7,947.00

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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.