Home / 28,979.46-39,985.50-17,038.44

Finding the Fourth Proportional to 28,979.46, 39,985.50 and 17,038.44

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Solution

The fourth proportional to 28,979.46, 39,985.50 and 17,038.44 is: 23,509.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.46 : 39,985.50 = 17,038.44 : x
  2. Step 2: Convert to fraction form
    28,979.46/39,985.50 = 17,038.44/x
  3. Step 3: Cross multiply
    28,979.46x = 39,985.50 × 17,038.44
  4. Step 4: Simplify right side
    28,979.46x = 681,290,542.62
  5. Step 5: Solve for x
    x = 681,290,542.62/28,979.46
  6. Step 6: Final answer
    x = 23,509.43

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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.