Home / 21,779.36-32,664.24-6,985.44

Finding the Fourth Proportional to 21,779.36, 32,664.24 and 6,985.44

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Solution

The fourth proportional to 21,779.36, 32,664.24 and 6,985.44 is: 10,476.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.36 : 32,664.24 = 6,985.44 : x
  2. Step 2: Convert to fraction form
    21,779.36/32,664.24 = 6,985.44/x
  3. Step 3: Cross multiply
    21,779.36x = 32,664.24 × 6,985.44
  4. Step 4: Simplify right side
    21,779.36x = 228,174,088.67
  5. Step 5: Solve for x
    x = 228,174,088.67/21,779.36
  6. Step 6: Final answer
    x = 10,476.62

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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.