Home / 21,710.12-32,563.74-12,999.08

Finding the Fourth Proportional to 21,710.12, 32,563.74 and 12,999.08

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Solution

The fourth proportional to 21,710.12, 32,563.74 and 12,999.08 is: 19,497.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710.12 : 32,563.74 = 12,999.08 : x
  2. Step 2: Convert to fraction form
    21,710.12/32,563.74 = 12,999.08/x
  3. Step 3: Cross multiply
    21,710.12x = 32,563.74 × 12,999.08
  4. Step 4: Simplify right side
    21,710.12x = 423,298,661.36
  5. Step 5: Solve for x
    x = 423,298,661.36/21,710.12
  6. Step 6: Final answer
    x = 19,497.76

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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.