Home / 28,699.96-39,605.67-15,952.81

Finding the Fourth Proportional to 28,699.96, 39,605.67 and 15,952.81

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Solution

The fourth proportional to 28,699.96, 39,605.67 and 15,952.81 is: 22,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.96 : 39,605.67 = 15,952.81 : x
  2. Step 2: Convert to fraction form
    28,699.96/39,605.67 = 15,952.81/x
  3. Step 3: Cross multiply
    28,699.96x = 39,605.67 × 15,952.81
  4. Step 4: Simplify right side
    28,699.96x = 631,821,728.43
  5. Step 5: Solve for x
    x = 631,821,728.43/28,699.96
  6. Step 6: Final answer
    x = 22,014.73

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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.