Home / 28,571.76-39,426.84-15,994.80

Finding the Fourth Proportional to 28,571.76, 39,426.84 and 15,994.80

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Solution

The fourth proportional to 28,571.76, 39,426.84 and 15,994.80 is: 22,071.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.76 : 39,426.84 = 15,994.80 : x
  2. Step 2: Convert to fraction form
    28,571.76/39,426.84 = 15,994.80/x
  3. Step 3: Cross multiply
    28,571.76x = 39,426.84 × 15,994.80
  4. Step 4: Simplify right side
    28,571.76x = 630,624,420.43
  5. Step 5: Solve for x
    x = 630,624,420.43/28,571.76
  6. Step 6: Final answer
    x = 22,071.60

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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.