Home / 21,319.37-29,422.74-12,246.00

Finding the Fourth Proportional to 21,319.37, 29,422.74 and 12,246.00

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Solution

The fourth proportional to 21,319.37, 29,422.74 and 12,246.00 is: 16,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,319.37 : 29,422.74 = 12,246.00 : x
  2. Step 2: Convert to fraction form
    21,319.37/29,422.74 = 12,246.00/x
  3. Step 3: Cross multiply
    21,319.37x = 29,422.74 × 12,246.00
  4. Step 4: Simplify right side
    21,319.37x = 360,310,975.13
  5. Step 5: Solve for x
    x = 360,310,975.13/21,319.37
  6. Step 6: Final answer
    x = 16,900.64

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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.