Home / 21,943.08-32,918.02-7,148.56

Finding the Fourth Proportional to 21,943.08, 32,918.02 and 7,148.56

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Solution

The fourth proportional to 21,943.08, 32,918.02 and 7,148.56 is: 10,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943.08 : 32,918.02 = 7,148.56 : x
  2. Step 2: Convert to fraction form
    21,943.08/32,918.02 = 7,148.56/x
  3. Step 3: Cross multiply
    21,943.08x = 32,918.02 × 7,148.56
  4. Step 4: Simplify right side
    21,943.08x = 235,316,441.05
  5. Step 5: Solve for x
    x = 235,316,441.05/21,943.08
  6. Step 6: Final answer
    x = 10,723.95

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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.