Home / 26,911.40-40,367.10-19,999.40

Finding the Fourth Proportional to 26,911.40, 40,367.10 and 19,999.40

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Solution

The fourth proportional to 26,911.40, 40,367.10 and 19,999.40 is: 29,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,911.40 : 40,367.10 = 19,999.40 : x
  2. Step 2: Convert to fraction form
    26,911.40/40,367.10 = 19,999.40/x
  3. Step 3: Cross multiply
    26,911.40x = 40,367.10 × 19,999.40
  4. Step 4: Simplify right side
    26,911.40x = 807,317,779.74
  5. Step 5: Solve for x
    x = 807,317,779.74/26,911.40
  6. Step 6: Final answer
    x = 29,999.10

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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.