Home / 34,399.61-47,446.59-20,971.43

Finding the Fourth Proportional to 34,399.61, 47,446.59 and 20,971.43

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Solution

The fourth proportional to 34,399.61, 47,446.59 and 20,971.43 is: 28,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,399.61 : 47,446.59 = 20,971.43 : x
  2. Step 2: Convert to fraction form
    34,399.61/47,446.59 = 20,971.43/x
  3. Step 3: Cross multiply
    34,399.61x = 47,446.59 × 20,971.43
  4. Step 4: Simplify right side
    34,399.61x = 995,022,840.92
  5. Step 5: Solve for x
    x = 995,022,840.92/34,399.61
  6. Step 6: Final answer
    x = 28,925.41

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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.