Home / 18,675.66-28,017.33-12,835.02

Finding the Fourth Proportional to 18,675.66, 28,017.33 and 12,835.02

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Solution

The fourth proportional to 18,675.66, 28,017.33 and 12,835.02 is: 19,255.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.66 : 28,017.33 = 12,835.02 : x
  2. Step 2: Convert to fraction form
    18,675.66/28,017.33 = 12,835.02/x
  3. Step 3: Cross multiply
    18,675.66x = 28,017.33 × 12,835.02
  4. Step 4: Simplify right side
    18,675.66x = 359,602,990.90
  5. Step 5: Solve for x
    x = 359,602,990.90/18,675.66
  6. Step 6: Final answer
    x = 19,255.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.