Home / 34,541.01-47,664.86-20,391.12

Finding the Fourth Proportional to 34,541.01, 47,664.86 and 20,391.12

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Solution

The fourth proportional to 34,541.01, 47,664.86 and 20,391.12 is: 28,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,541.01 : 47,664.86 = 20,391.12 : x
  2. Step 2: Convert to fraction form
    34,541.01/47,664.86 = 20,391.12/x
  3. Step 3: Cross multiply
    34,541.01x = 47,664.86 × 20,391.12
  4. Step 4: Simplify right side
    34,541.01x = 971,939,778.09
  5. Step 5: Solve for x
    x = 971,939,778.09/34,541.01
  6. Step 6: Final answer
    x = 28,138.72

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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.