Home / 28,806.30-43,210.80-9,086.40

Finding the Fourth Proportional to 28,806.30, 43,210.80 and 9,086.40

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Solution

The fourth proportional to 28,806.30, 43,210.80 and 9,086.40 is: 13,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.30 : 43,210.80 = 9,086.40 : x
  2. Step 2: Convert to fraction form
    28,806.30/43,210.80 = 9,086.40/x
  3. Step 3: Cross multiply
    28,806.30x = 43,210.80 × 9,086.40
  4. Step 4: Simplify right side
    28,806.30x = 392,630,613.12
  5. Step 5: Solve for x
    x = 392,630,613.12/28,806.30
  6. Step 6: Final answer
    x = 13,630.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.