Home / 34,294.92-47,313.06-20,855.40

Finding the Fourth Proportional to 34,294.92, 47,313.06 and 20,855.40

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Solution

The fourth proportional to 34,294.92, 47,313.06 and 20,855.40 is: 28,771.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,294.92 : 47,313.06 = 20,855.40 : x
  2. Step 2: Convert to fraction form
    34,294.92/47,313.06 = 20,855.40/x
  3. Step 3: Cross multiply
    34,294.92x = 47,313.06 × 20,855.40
  4. Step 4: Simplify right side
    34,294.92x = 986,732,791.52
  5. Step 5: Solve for x
    x = 986,732,791.52/34,294.92
  6. Step 6: Final answer
    x = 28,771.98

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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.