Home / 25,990.12-35,870.21-19,266.31

Finding the Fourth Proportional to 25,990.12, 35,870.21 and 19,266.31

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Solution

The fourth proportional to 25,990.12, 35,870.21 and 19,266.31 is: 26,590.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.12 : 35,870.21 = 19,266.31 : x
  2. Step 2: Convert to fraction form
    25,990.12/35,870.21 = 19,266.31/x
  3. Step 3: Cross multiply
    25,990.12x = 35,870.21 × 19,266.31
  4. Step 4: Simplify right side
    25,990.12x = 691,086,585.63
  5. Step 5: Solve for x
    x = 691,086,585.63/25,990.12
  6. Step 6: Final answer
    x = 26,590.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.