Home / 21,809.23-30,094.35-12,247.18

Finding the Fourth Proportional to 21,809.23, 30,094.35 and 12,247.18

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Solution

The fourth proportional to 21,809.23, 30,094.35 and 12,247.18 is: 16,899.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,809.23 : 30,094.35 = 12,247.18 : x
  2. Step 2: Convert to fraction form
    21,809.23/30,094.35 = 12,247.18/x
  3. Step 3: Cross multiply
    21,809.23x = 30,094.35 × 12,247.18
  4. Step 4: Simplify right side
    21,809.23x = 368,570,996.67
  5. Step 5: Solve for x
    x = 368,570,996.67/21,809.23
  6. Step 6: Final answer
    x = 16,899.77

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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.