Home / 28,889.01-39,866.40-16,142.49

Finding the Fourth Proportional to 28,889.01, 39,866.40 and 16,142.49

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Solution

The fourth proportional to 28,889.01, 39,866.40 and 16,142.49 is: 22,276.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.01 : 39,866.40 = 16,142.49 : x
  2. Step 2: Convert to fraction form
    28,889.01/39,866.40 = 16,142.49/x
  3. Step 3: Cross multiply
    28,889.01x = 39,866.40 × 16,142.49
  4. Step 4: Simplify right side
    28,889.01x = 643,542,963.34
  5. Step 5: Solve for x
    x = 643,542,963.34/28,889.01
  6. Step 6: Final answer
    x = 22,276.39

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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.