Home / 43,537.80-65,306.70-20,209.80

Finding the Fourth Proportional to 43,537.80, 65,306.70 and 20,209.80

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Solution

The fourth proportional to 43,537.80, 65,306.70 and 20,209.80 is: 30,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,537.80 : 65,306.70 = 20,209.80 : x
  2. Step 2: Convert to fraction form
    43,537.80/65,306.70 = 20,209.80/x
  3. Step 3: Cross multiply
    43,537.80x = 65,306.70 × 20,209.80
  4. Step 4: Simplify right side
    43,537.80x = 1,319,835,345.66
  5. Step 5: Solve for x
    x = 1,319,835,345.66/43,537.80
  6. Step 6: Final answer
    x = 30,314.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.