Home / 39,888.86-59,870.21-20,181.29

Finding the Fourth Proportional to 39,888.86, 59,870.21 and 20,181.29

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Solution

The fourth proportional to 39,888.86, 59,870.21 and 20,181.29 is: 30,290.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,888.86 : 59,870.21 = 20,181.29 : x
  2. Step 2: Convert to fraction form
    39,888.86/59,870.21 = 20,181.29/x
  3. Step 3: Cross multiply
    39,888.86x = 59,870.21 × 20,181.29
  4. Step 4: Simplify right side
    39,888.86x = 1,208,257,670.11
  5. Step 5: Solve for x
    x = 1,208,257,670.11/39,888.86
  6. Step 6: Final answer
    x = 30,290.61

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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.