Home / 28,035.19-42,059.88-9,315.33

Finding the Fourth Proportional to 28,035.19, 42,059.88 and 9,315.33

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Solution

The fourth proportional to 28,035.19, 42,059.88 and 9,315.33 is: 13,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.19 : 42,059.88 = 9,315.33 : x
  2. Step 2: Convert to fraction form
    28,035.19/42,059.88 = 9,315.33/x
  3. Step 3: Cross multiply
    28,035.19x = 42,059.88 × 9,315.33
  4. Step 4: Simplify right side
    28,035.19x = 391,801,661.96
  5. Step 5: Solve for x
    x = 391,801,661.96/28,035.19
  6. Step 6: Final answer
    x = 13,975.35

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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.