Home / 28,822.69-39,784.19-16,889.91

Finding the Fourth Proportional to 28,822.69, 39,784.19 and 16,889.91

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Solution

The fourth proportional to 28,822.69, 39,784.19 and 16,889.91 is: 23,313.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,822.69 : 39,784.19 = 16,889.91 : x
  2. Step 2: Convert to fraction form
    28,822.69/39,784.19 = 16,889.91/x
  3. Step 3: Cross multiply
    28,822.69x = 39,784.19 × 16,889.91
  4. Step 4: Simplify right side
    28,822.69x = 671,951,388.52
  5. Step 5: Solve for x
    x = 671,951,388.52/28,822.69
  6. Step 6: Final answer
    x = 23,313.28

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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.