Home / 20,558.27-28,370.54-12,058.65

Finding the Fourth Proportional to 20,558.27, 28,370.54 and 12,058.65

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Solution

The fourth proportional to 20,558.27, 28,370.54 and 12,058.65 is: 16,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.27 : 28,370.54 = 12,058.65 : x
  2. Step 2: Convert to fraction form
    20,558.27/28,370.54 = 12,058.65/x
  3. Step 3: Cross multiply
    20,558.27x = 28,370.54 × 12,058.65
  4. Step 4: Simplify right side
    20,558.27x = 342,110,412.17
  5. Step 5: Solve for x
    x = 342,110,412.17/20,558.27
  6. Step 6: Final answer
    x = 16,641.01

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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.