Home / 19,590.80-29,390.52-6,442.64

Finding the Fourth Proportional to 19,590.80, 29,390.52 and 6,442.64

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Solution

The fourth proportional to 19,590.80, 29,390.52 and 6,442.64 is: 9,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.80 : 29,390.52 = 6,442.64 : x
  2. Step 2: Convert to fraction form
    19,590.80/29,390.52 = 6,442.64/x
  3. Step 3: Cross multiply
    19,590.80x = 29,390.52 × 6,442.64
  4. Step 4: Simplify right side
    19,590.80x = 189,352,539.77
  5. Step 5: Solve for x
    x = 189,352,539.77/19,590.80
  6. Step 6: Final answer
    x = 9,665.38

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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.