Home / 40,990.98-61,488.67-12,913.23

Finding the Fourth Proportional to 40,990.98, 61,488.67 and 12,913.23

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Solution

The fourth proportional to 40,990.98, 61,488.67 and 12,913.23 is: 19,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,990.98 : 61,488.67 = 12,913.23 : x
  2. Step 2: Convert to fraction form
    40,990.98/61,488.67 = 12,913.23/x
  3. Step 3: Cross multiply
    40,990.98x = 61,488.67 × 12,913.23
  4. Step 4: Simplify right side
    40,990.98x = 794,017,584.83
  5. Step 5: Solve for x
    x = 794,017,584.83/40,990.98
  6. Step 6: Final answer
    x = 19,370.54

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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.