Home / 21,594.75-32,378.19-9,111.45

Finding the Fourth Proportional to 21,594.75, 32,378.19 and 9,111.45

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Solution

The fourth proportional to 21,594.75, 32,378.19 and 9,111.45 is: 13,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,594.75 : 32,378.19 = 9,111.45 : x
  2. Step 2: Convert to fraction form
    21,594.75/32,378.19 = 9,111.45/x
  3. Step 3: Cross multiply
    21,594.75x = 32,378.19 × 9,111.45
  4. Step 4: Simplify right side
    21,594.75x = 295,012,259.28
  5. Step 5: Solve for x
    x = 295,012,259.28/21,594.75
  6. Step 6: Final answer
    x = 13,661.30

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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.