Home / 28,014.04-42,015.30-13,216.60

Finding the Fourth Proportional to 28,014.04, 42,015.30 and 13,216.60

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Solution

The fourth proportional to 28,014.04, 42,015.30 and 13,216.60 is: 19,822.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.04 : 42,015.30 = 13,216.60 : x
  2. Step 2: Convert to fraction form
    28,014.04/42,015.30 = 13,216.60/x
  3. Step 3: Cross multiply
    28,014.04x = 42,015.30 × 13,216.60
  4. Step 4: Simplify right side
    28,014.04x = 555,299,413.98
  5. Step 5: Solve for x
    x = 555,299,413.98/28,014.04
  6. Step 6: Final answer
    x = 19,822.18

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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.