Home / 21,705.60-32,555.20-6,124.80

Finding the Fourth Proportional to 21,705.60, 32,555.20 and 6,124.80

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Solution

The fourth proportional to 21,705.60, 32,555.20 and 6,124.80 is: 9,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.60 : 32,555.20 = 6,124.80 : x
  2. Step 2: Convert to fraction form
    21,705.60/32,555.20 = 6,124.80/x
  3. Step 3: Cross multiply
    21,705.60x = 32,555.20 × 6,124.80
  4. Step 4: Simplify right side
    21,705.60x = 199,394,088.96
  5. Step 5: Solve for x
    x = 199,394,088.96/21,705.60
  6. Step 6: Final answer
    x = 9,186.30

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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.