Home / 47,019.51-70,512.86-20,709.90

Finding the Fourth Proportional to 47,019.51, 70,512.86 and 20,709.90

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Solution

The fourth proportional to 47,019.51, 70,512.86 and 20,709.90 is: 31,057.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,019.51 : 70,512.86 = 20,709.90 : x
  2. Step 2: Convert to fraction form
    47,019.51/70,512.86 = 20,709.90/x
  3. Step 3: Cross multiply
    47,019.51x = 70,512.86 × 20,709.90
  4. Step 4: Simplify right side
    47,019.51x = 1,460,314,331.09
  5. Step 5: Solve for x
    x = 1,460,314,331.09/47,019.51
  6. Step 6: Final answer
    x = 31,057.63

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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.