Home / 34,768.83-47,974.57-20,431.00

Finding the Fourth Proportional to 34,768.83, 47,974.57 and 20,431.00

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Solution

The fourth proportional to 34,768.83, 47,974.57 and 20,431.00 is: 28,191.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,768.83 : 47,974.57 = 20,431.00 : x
  2. Step 2: Convert to fraction form
    34,768.83/47,974.57 = 20,431.00/x
  3. Step 3: Cross multiply
    34,768.83x = 47,974.57 × 20,431.00
  4. Step 4: Simplify right side
    34,768.83x = 980,168,199.80
  5. Step 5: Solve for x
    x = 980,168,199.80/34,768.83
  6. Step 6: Final answer
    x = 28,191.00

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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.