Home / 34,537.55-47,661.89-20,391.30

Finding the Fourth Proportional to 34,537.55, 47,661.89 and 20,391.30

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Solution

The fourth proportional to 34,537.55, 47,661.89 and 20,391.30 is: 28,140.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,537.55 : 47,661.89 = 20,391.30 : x
  2. Step 2: Convert to fraction form
    34,537.55/47,661.89 = 20,391.30/x
  3. Step 3: Cross multiply
    34,537.55x = 47,661.89 × 20,391.30
  4. Step 4: Simplify right side
    34,537.55x = 971,887,795.60
  5. Step 5: Solve for x
    x = 971,887,795.60/34,537.55
  6. Step 6: Final answer
    x = 28,140.04

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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.