Home / 21,935.61-32,903.35-7,144.49

Finding the Fourth Proportional to 21,935.61, 32,903.35 and 7,144.49

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Solution

The fourth proportional to 21,935.61, 32,903.35 and 7,144.49 is: 10,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.61 : 32,903.35 = 7,144.49 : x
  2. Step 2: Convert to fraction form
    21,935.61/32,903.35 = 7,144.49/x
  3. Step 3: Cross multiply
    21,935.61x = 32,903.35 × 7,144.49
  4. Step 4: Simplify right side
    21,935.61x = 235,077,719.44
  5. Step 5: Solve for x
    x = 235,077,719.44/21,935.61
  6. Step 6: Final answer
    x = 10,716.72

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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.