Home / 21,489.08-32,086.56-19,253.48

Finding the Fourth Proportional to 21,489.08, 32,086.56 and 19,253.48

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Solution

The fourth proportional to 21,489.08, 32,086.56 and 19,253.48 is: 28,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.08 : 32,086.56 = 19,253.48 : x
  2. Step 2: Convert to fraction form
    21,489.08/32,086.56 = 19,253.48/x
  3. Step 3: Cross multiply
    21,489.08x = 32,086.56 × 19,253.48
  4. Step 4: Simplify right side
    21,489.08x = 617,777,844.96
  5. Step 5: Solve for x
    x = 617,777,844.96/21,489.08
  6. Step 6: Final answer
    x = 28,748.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.