Home / 21,125.60-29,153.33-11,565.46

Finding the Fourth Proportional to 21,125.60, 29,153.33 and 11,565.46

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Solution

The fourth proportional to 21,125.60, 29,153.33 and 11,565.46 is: 15,960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,125.60 : 29,153.33 = 11,565.46 : x
  2. Step 2: Convert to fraction form
    21,125.60/29,153.33 = 11,565.46/x
  3. Step 3: Cross multiply
    21,125.60x = 29,153.33 × 11,565.46
  4. Step 4: Simplify right side
    21,125.60x = 337,171,628.24
  5. Step 5: Solve for x
    x = 337,171,628.24/21,125.60
  6. Step 6: Final answer
    x = 15,960.33

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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.