Home / 28,154.41-38,851.79-16,219.46

Finding the Fourth Proportional to 28,154.41, 38,851.79 and 16,219.46

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Solution

The fourth proportional to 28,154.41, 38,851.79 and 16,219.46 is: 22,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,154.41 : 38,851.79 = 16,219.46 : x
  2. Step 2: Convert to fraction form
    28,154.41/38,851.79 = 16,219.46/x
  3. Step 3: Cross multiply
    28,154.41x = 38,851.79 × 16,219.46
  4. Step 4: Simplify right side
    28,154.41x = 630,155,069.87
  5. Step 5: Solve for x
    x = 630,155,069.87/28,154.41
  6. Step 6: Final answer
    x = 22,382.11

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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.