Home / 28,409.40-42,578.46-16,693.56

Finding the Fourth Proportional to 28,409.40, 42,578.46 and 16,693.56

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Solution

The fourth proportional to 28,409.40, 42,578.46 and 16,693.56 is: 25,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.40 : 42,578.46 = 16,693.56 : x
  2. Step 2: Convert to fraction form
    28,409.40/42,578.46 = 16,693.56/x
  3. Step 3: Cross multiply
    28,409.40x = 42,578.46 × 16,693.56
  4. Step 4: Simplify right side
    28,409.40x = 710,786,076.72
  5. Step 5: Solve for x
    x = 710,786,076.72/28,409.40
  6. Step 6: Final answer
    x = 25,019.40

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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.