Home / 21,789.40-32,705.70-10,708.60

Finding the Fourth Proportional to 21,789.40, 32,705.70 and 10,708.60

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Solution

The fourth proportional to 21,789.40, 32,705.70 and 10,708.60 is: 16,073.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.40 : 32,705.70 = 10,708.60 : x
  2. Step 2: Convert to fraction form
    21,789.40/32,705.70 = 10,708.60/x
  3. Step 3: Cross multiply
    21,789.40x = 32,705.70 × 10,708.60
  4. Step 4: Simplify right side
    21,789.40x = 350,232,259.02
  5. Step 5: Solve for x
    x = 350,232,259.02/21,789.40
  6. Step 6: Final answer
    x = 16,073.52

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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.