Home / 21,928.19-30,263.86-12,370.04

Finding the Fourth Proportional to 21,928.19, 30,263.86 and 12,370.04

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Solution

The fourth proportional to 21,928.19, 30,263.86 and 12,370.04 is: 17,072.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.19 : 30,263.86 = 12,370.04 : x
  2. Step 2: Convert to fraction form
    21,928.19/30,263.86 = 12,370.04/x
  3. Step 3: Cross multiply
    21,928.19x = 30,263.86 × 12,370.04
  4. Step 4: Simplify right side
    21,928.19x = 374,365,158.75
  5. Step 5: Solve for x
    x = 374,365,158.75/21,928.19
  6. Step 6: Final answer
    x = 17,072.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.