Home / 30,445.13-41,987.07-19,115.69

Finding the Fourth Proportional to 30,445.13, 41,987.07 and 19,115.69

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Solution

The fourth proportional to 30,445.13, 41,987.07 and 19,115.69 is: 26,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445.13 : 41,987.07 = 19,115.69 : x
  2. Step 2: Convert to fraction form
    30,445.13/41,987.07 = 19,115.69/x
  3. Step 3: Cross multiply
    30,445.13x = 41,987.07 × 19,115.69
  4. Step 4: Simplify right side
    30,445.13x = 802,611,604.19
  5. Step 5: Solve for x
    x = 802,611,604.19/30,445.13
  6. Step 6: Final answer
    x = 26,362.56

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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.