Home / 28,473.72-39,293.88-15,898.56

Finding the Fourth Proportional to 28,473.72, 39,293.88 and 15,898.56

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Solution

The fourth proportional to 28,473.72, 39,293.88 and 15,898.56 is: 21,940.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.72 : 39,293.88 = 15,898.56 : x
  2. Step 2: Convert to fraction form
    28,473.72/39,293.88 = 15,898.56/x
  3. Step 3: Cross multiply
    28,473.72x = 39,293.88 × 15,898.56
  4. Step 4: Simplify right side
    28,473.72x = 624,716,108.81
  5. Step 5: Solve for x
    x = 624,716,108.81/28,473.72
  6. Step 6: Final answer
    x = 21,940.09

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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.