Home / 28,439.66-39,240.72-16,501.48

Finding the Fourth Proportional to 28,439.66, 39,240.72 and 16,501.48

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Solution

The fourth proportional to 28,439.66, 39,240.72 and 16,501.48 is: 22,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439.66 : 39,240.72 = 16,501.48 : x
  2. Step 2: Convert to fraction form
    28,439.66/39,240.72 = 16,501.48/x
  3. Step 3: Cross multiply
    28,439.66x = 39,240.72 × 16,501.48
  4. Step 4: Simplify right side
    28,439.66x = 647,529,858.16
  5. Step 5: Solve for x
    x = 647,529,858.16/28,439.66
  6. Step 6: Final answer
    x = 22,768.55

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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.