Home / 21,417.66-32,109.18-8,947.24

Finding the Fourth Proportional to 21,417.66, 32,109.18 and 8,947.24

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Solution

The fourth proportional to 21,417.66, 32,109.18 and 8,947.24 is: 13,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.66 : 32,109.18 = 8,947.24 : x
  2. Step 2: Convert to fraction form
    21,417.66/32,109.18 = 8,947.24/x
  3. Step 3: Cross multiply
    21,417.66x = 32,109.18 × 8,947.24
  4. Step 4: Simplify right side
    21,417.66x = 287,288,539.66
  5. Step 5: Solve for x
    x = 287,288,539.66/21,417.66
  6. Step 6: Final answer
    x = 13,413.63

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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.