Home / 30,855.18-46,303.56-13,326.78

Finding the Fourth Proportional to 30,855.18, 46,303.56 and 13,326.78

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Solution

The fourth proportional to 30,855.18, 46,303.56 and 13,326.78 is: 19,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.18 : 46,303.56 = 13,326.78 : x
  2. Step 2: Convert to fraction form
    30,855.18/46,303.56 = 13,326.78/x
  3. Step 3: Cross multiply
    30,855.18x = 46,303.56 × 13,326.78
  4. Step 4: Simplify right side
    30,855.18x = 617,077,357.34
  5. Step 5: Solve for x
    x = 617,077,357.34/30,855.18
  6. Step 6: Final answer
    x = 19,999.15

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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.