Home / 21,752.40-30,025.53-12,799.56

Finding the Fourth Proportional to 21,752.40, 30,025.53 and 12,799.56

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Solution

The fourth proportional to 21,752.40, 30,025.53 and 12,799.56 is: 17,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,752.40 : 30,025.53 = 12,799.56 : x
  2. Step 2: Convert to fraction form
    21,752.40/30,025.53 = 12,799.56/x
  3. Step 3: Cross multiply
    21,752.40x = 30,025.53 × 12,799.56
  4. Step 4: Simplify right side
    21,752.40x = 384,313,572.77
  5. Step 5: Solve for x
    x = 384,313,572.77/21,752.40
  6. Step 6: Final answer
    x = 17,667.64

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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.