Home / 15,600.29-21,533.54-12,419.42

Finding the Fourth Proportional to 15,600.29, 21,533.54 and 12,419.42

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Solution

The fourth proportional to 15,600.29, 21,533.54 and 12,419.42 is: 17,142.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.29 : 21,533.54 = 12,419.42 : x
  2. Step 2: Convert to fraction form
    15,600.29/21,533.54 = 12,419.42/x
  3. Step 3: Cross multiply
    15,600.29x = 21,533.54 × 12,419.42
  4. Step 4: Simplify right side
    15,600.29x = 267,434,077.35
  5. Step 5: Solve for x
    x = 267,434,077.35/15,600.29
  6. Step 6: Final answer
    x = 17,142.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.