Home / 28,747.09-39,670.95-16,808.05

Finding the Fourth Proportional to 28,747.09, 39,670.95 and 16,808.05

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Solution

The fourth proportional to 28,747.09, 39,670.95 and 16,808.05 is: 23,195.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.09 : 39,670.95 = 16,808.05 : x
  2. Step 2: Convert to fraction form
    28,747.09/39,670.95 = 16,808.05/x
  3. Step 3: Cross multiply
    28,747.09x = 39,670.95 × 16,808.05
  4. Step 4: Simplify right side
    28,747.09x = 666,791,311.15
  5. Step 5: Solve for x
    x = 666,791,311.15/28,747.09
  6. Step 6: Final answer
    x = 23,195.09

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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.