Home / 21,782.23-32,677.60-6,990.01

Finding the Fourth Proportional to 21,782.23, 32,677.60 and 6,990.01

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Solution

The fourth proportional to 21,782.23, 32,677.60 and 6,990.01 is: 10,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,782.23 : 32,677.60 = 6,990.01 : x
  2. Step 2: Convert to fraction form
    21,782.23/32,677.60 = 6,990.01/x
  3. Step 3: Cross multiply
    21,782.23x = 32,677.60 × 6,990.01
  4. Step 4: Simplify right side
    21,782.23x = 228,416,638.50
  5. Step 5: Solve for x
    x = 228,416,638.50/21,782.23
  6. Step 6: Final answer
    x = 10,486.38

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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.