Home / 20,559.65-28,369.25-12,058.57

Finding the Fourth Proportional to 20,559.65, 28,369.25 and 12,058.57

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Solution

The fourth proportional to 20,559.65, 28,369.25 and 12,058.57 is: 16,639.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.65 : 28,369.25 = 12,058.57 : x
  2. Step 2: Convert to fraction form
    20,559.65/28,369.25 = 12,058.57/x
  3. Step 3: Cross multiply
    20,559.65x = 28,369.25 × 12,058.57
  4. Step 4: Simplify right side
    20,559.65x = 342,092,455.76
  5. Step 5: Solve for x
    x = 342,092,455.76/20,559.65
  6. Step 6: Final answer
    x = 16,639.02

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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.