Home / 30,306.80-41,803.86-19,565.36

Finding the Fourth Proportional to 30,306.80, 41,803.86 and 19,565.36

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Solution

The fourth proportional to 30,306.80, 41,803.86 and 19,565.36 is: 26,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,306.80 : 41,803.86 = 19,565.36 : x
  2. Step 2: Convert to fraction form
    30,306.80/41,803.86 = 19,565.36/x
  3. Step 3: Cross multiply
    30,306.80x = 41,803.86 × 19,565.36
  4. Step 4: Simplify right side
    30,306.80x = 817,907,570.29
  5. Step 5: Solve for x
    x = 817,907,570.29/30,306.80
  6. Step 6: Final answer
    x = 26,987.59

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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.