Home / 47,188.09-70,749.33-20,878.48

Finding the Fourth Proportional to 47,188.09, 70,749.33 and 20,878.48

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Solution

The fourth proportional to 47,188.09, 70,749.33 and 20,878.48 is: 31,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,188.09 : 70,749.33 = 20,878.48 : x
  2. Step 2: Convert to fraction form
    47,188.09/70,749.33 = 20,878.48/x
  3. Step 3: Cross multiply
    47,188.09x = 70,749.33 × 20,878.48
  4. Step 4: Simplify right side
    47,188.09x = 1,477,138,471.42
  5. Step 5: Solve for x
    x = 1,477,138,471.42/47,188.09
  6. Step 6: Final answer
    x = 31,303.21

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1.5x scale

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.