Home / 30,429.12-45,645.32-9,383.65

Finding the Fourth Proportional to 30,429.12, 45,645.32 and 9,383.65

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Solution

The fourth proportional to 30,429.12, 45,645.32 and 9,383.65 is: 14,075.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,429.12 : 45,645.32 = 9,383.65 : x
  2. Step 2: Convert to fraction form
    30,429.12/45,645.32 = 9,383.65/x
  3. Step 3: Cross multiply
    30,429.12x = 45,645.32 × 9,383.65
  4. Step 4: Simplify right side
    30,429.12x = 428,319,616.36
  5. Step 5: Solve for x
    x = 428,319,616.36/30,429.12
  6. Step 6: Final answer
    x = 14,075.98

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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.