Home / 28,492.23-42,734.37-7,430.55

Finding the Fourth Proportional to 28,492.23, 42,734.37 and 7,430.55

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Solution

The fourth proportional to 28,492.23, 42,734.37 and 7,430.55 is: 11,144.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.23 : 42,734.37 = 7,430.55 : x
  2. Step 2: Convert to fraction form
    28,492.23/42,734.37 = 7,430.55/x
  3. Step 3: Cross multiply
    28,492.23x = 42,734.37 × 7,430.55
  4. Step 4: Simplify right side
    28,492.23x = 317,539,873.00
  5. Step 5: Solve for x
    x = 317,539,873.00/28,492.23
  6. Step 6: Final answer
    x = 11,144.79

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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.