Home / 30,866.76-42,596.93-18,763.09

Finding the Fourth Proportional to 30,866.76, 42,596.93 and 18,763.09

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Solution

The fourth proportional to 30,866.76, 42,596.93 and 18,763.09 is: 25,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,866.76 : 42,596.93 = 18,763.09 : x
  2. Step 2: Convert to fraction form
    30,866.76/42,596.93 = 18,763.09/x
  3. Step 3: Cross multiply
    30,866.76x = 42,596.93 × 18,763.09
  4. Step 4: Simplify right side
    30,866.76x = 799,249,971.73
  5. Step 5: Solve for x
    x = 799,249,971.73/30,866.76
  6. Step 6: Final answer
    x = 25,893.55

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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.