Home / 28,562.06-39,415.62-15,986.81

Finding the Fourth Proportional to 28,562.06, 39,415.62 and 15,986.81

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Solution

The fourth proportional to 28,562.06, 39,415.62 and 15,986.81 is: 22,061.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,562.06 : 39,415.62 = 15,986.81 : x
  2. Step 2: Convert to fraction form
    28,562.06/39,415.62 = 15,986.81/x
  3. Step 3: Cross multiply
    28,562.06x = 39,415.62 × 15,986.81
  4. Step 4: Simplify right side
    28,562.06x = 630,130,027.97
  5. Step 5: Solve for x
    x = 630,130,027.97/28,562.06
  6. Step 6: Final answer
    x = 22,061.79

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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.