Home / 47,205.68-70,784.14-13,921.51

Finding the Fourth Proportional to 47,205.68, 70,784.14 and 13,921.51

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Solution

The fourth proportional to 47,205.68, 70,784.14 and 13,921.51 is: 20,875.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,205.68 : 70,784.14 = 13,921.51 : x
  2. Step 2: Convert to fraction form
    47,205.68/70,784.14 = 13,921.51/x
  3. Step 3: Cross multiply
    47,205.68x = 70,784.14 × 13,921.51
  4. Step 4: Simplify right side
    47,205.68x = 985,422,112.85
  5. Step 5: Solve for x
    x = 985,422,112.85/47,205.68
  6. Step 6: Final answer
    x = 20,875.08

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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.