Home / 28,300.20-39,055.31-16,971.54

Finding the Fourth Proportional to 28,300.20, 39,055.31 and 16,971.54

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Solution

The fourth proportional to 28,300.20, 39,055.31 and 16,971.54 is: 23,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,300.20 : 39,055.31 = 16,971.54 : x
  2. Step 2: Convert to fraction form
    28,300.20/39,055.31 = 16,971.54/x
  3. Step 3: Cross multiply
    28,300.20x = 39,055.31 × 16,971.54
  4. Step 4: Simplify right side
    28,300.20x = 662,828,755.88
  5. Step 5: Solve for x
    x = 662,828,755.88/28,300.20
  6. Step 6: Final answer
    x = 23,421.35

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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.