Home / 38,860.80-58,307.40-12,573.60

Finding the Fourth Proportional to 38,860.80, 58,307.40 and 12,573.60

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Solution

The fourth proportional to 38,860.80, 58,307.40 and 12,573.60 is: 18,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,860.80 : 58,307.40 = 12,573.60 : x
  2. Step 2: Convert to fraction form
    38,860.80/58,307.40 = 12,573.60/x
  3. Step 3: Cross multiply
    38,860.80x = 58,307.40 × 12,573.60
  4. Step 4: Simplify right side
    38,860.80x = 733,133,924.64
  5. Step 5: Solve for x
    x = 733,133,924.64/38,860.80
  6. Step 6: Final answer
    x = 18,865.64

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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.