Home / 28,293.84-39,022.98-18,223.12

Finding the Fourth Proportional to 28,293.84, 39,022.98 and 18,223.12

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Solution

The fourth proportional to 28,293.84, 39,022.98 and 18,223.12 is: 25,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.84 : 39,022.98 = 18,223.12 : x
  2. Step 2: Convert to fraction form
    28,293.84/39,022.98 = 18,223.12/x
  3. Step 3: Cross multiply
    28,293.84x = 39,022.98 × 18,223.12
  4. Step 4: Simplify right side
    28,293.84x = 711,120,447.30
  5. Step 5: Solve for x
    x = 711,120,447.30/28,293.84
  6. Step 6: Final answer
    x = 25,133.40

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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.