Home / 28,346.49-39,118.23-15,771.24

Finding the Fourth Proportional to 28,346.49, 39,118.23 and 15,771.24

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Solution

The fourth proportional to 28,346.49, 39,118.23 and 15,771.24 is: 21,764.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.49 : 39,118.23 = 15,771.24 : x
  2. Step 2: Convert to fraction form
    28,346.49/39,118.23 = 15,771.24/x
  3. Step 3: Cross multiply
    28,346.49x = 39,118.23 × 15,771.24
  4. Step 4: Simplify right side
    28,346.49x = 616,942,993.71
  5. Step 5: Solve for x
    x = 616,942,993.71/28,346.49
  6. Step 6: Final answer
    x = 21,764.35

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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.