Home / 28,074.06-42,110.96-11,430.15

Finding the Fourth Proportional to 28,074.06, 42,110.96 and 11,430.15

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Solution

The fourth proportional to 28,074.06, 42,110.96 and 11,430.15 is: 17,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.06 : 42,110.96 = 11,430.15 : x
  2. Step 2: Convert to fraction form
    28,074.06/42,110.96 = 11,430.15/x
  3. Step 3: Cross multiply
    28,074.06x = 42,110.96 × 11,430.15
  4. Step 4: Simplify right side
    28,074.06x = 481,334,374.38
  5. Step 5: Solve for x
    x = 481,334,374.38/28,074.06
  6. Step 6: Final answer
    x = 17,145.16

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1.5x scale

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.