Home / 19,590.18-29,385.23-7,110.20

Finding the Fourth Proportional to 19,590.18, 29,385.23 and 7,110.20

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Solution

The fourth proportional to 19,590.18, 29,385.23 and 7,110.20 is: 10,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.18 : 29,385.23 = 7,110.20 : x
  2. Step 2: Convert to fraction form
    19,590.18/29,385.23 = 7,110.20/x
  3. Step 3: Cross multiply
    19,590.18x = 29,385.23 × 7,110.20
  4. Step 4: Simplify right side
    19,590.18x = 208,934,679.87
  5. Step 5: Solve for x
    x = 208,934,679.87/19,590.18
  6. Step 6: Final answer
    x = 10,665.28

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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.