Home / 28,870.35-39,841.11-16,773.18

Finding the Fourth Proportional to 28,870.35, 39,841.11 and 16,773.18

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Solution

The fourth proportional to 28,870.35, 39,841.11 and 16,773.18 is: 23,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.35 : 39,841.11 = 16,773.18 : x
  2. Step 2: Convert to fraction form
    28,870.35/39,841.11 = 16,773.18/x
  3. Step 3: Cross multiply
    28,870.35x = 39,841.11 × 16,773.18
  4. Step 4: Simplify right side
    28,870.35x = 668,262,109.43
  5. Step 5: Solve for x
    x = 668,262,109.43/28,870.35
  6. Step 6: Final answer
    x = 23,147.00

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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.