Home / 28,347.66-39,121.65-16,415.19

Finding the Fourth Proportional to 28,347.66, 39,121.65 and 16,415.19

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Solution

The fourth proportional to 28,347.66, 39,121.65 and 16,415.19 is: 22,654.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.66 : 39,121.65 = 16,415.19 : x
  2. Step 2: Convert to fraction form
    28,347.66/39,121.65 = 16,415.19/x
  3. Step 3: Cross multiply
    28,347.66x = 39,121.65 × 16,415.19
  4. Step 4: Simplify right side
    28,347.66x = 642,189,317.86
  5. Step 5: Solve for x
    x = 642,189,317.86/28,347.66
  6. Step 6: Final answer
    x = 22,654.05

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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.