Home / 28,815.48-39,768.53-16,718.63

Finding the Fourth Proportional to 28,815.48, 39,768.53 and 16,718.63

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Solution

The fourth proportional to 28,815.48, 39,768.53 and 16,718.63 is: 23,073.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,815.48 : 39,768.53 = 16,718.63 : x
  2. Step 2: Convert to fraction form
    28,815.48/39,768.53 = 16,718.63/x
  3. Step 3: Cross multiply
    28,815.48x = 39,768.53 × 16,718.63
  4. Step 4: Simplify right side
    28,815.48x = 664,875,056.28
  5. Step 5: Solve for x
    x = 664,875,056.28/28,815.48
  6. Step 6: Final answer
    x = 23,073.54

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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.