Home / 28,464.42-39,280.86-15,889.17

Finding the Fourth Proportional to 28,464.42, 39,280.86 and 15,889.17

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Solution

The fourth proportional to 28,464.42, 39,280.86 and 15,889.17 is: 21,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.42 : 39,280.86 = 15,889.17 : x
  2. Step 2: Convert to fraction form
    28,464.42/39,280.86 = 15,889.17/x
  3. Step 3: Cross multiply
    28,464.42x = 39,280.86 × 15,889.17
  4. Step 4: Simplify right side
    28,464.42x = 624,140,262.29
  5. Step 5: Solve for x
    x = 624,140,262.29/28,464.42
  6. Step 6: Final answer
    x = 21,927.03

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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.