Home / 19,623.31-29,435.64-7,779.32

Finding the Fourth Proportional to 19,623.31, 29,435.64 and 7,779.32

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Solution

The fourth proportional to 19,623.31, 29,435.64 and 7,779.32 is: 11,669.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,623.31 : 29,435.64 = 7,779.32 : x
  2. Step 2: Convert to fraction form
    19,623.31/29,435.64 = 7,779.32/x
  3. Step 3: Cross multiply
    19,623.31x = 29,435.64 × 7,779.32
  4. Step 4: Simplify right side
    19,623.31x = 228,989,336.55
  5. Step 5: Solve for x
    x = 228,989,336.55/19,623.31
  6. Step 6: Final answer
    x = 11,669.25

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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.