Home / 30,485.30-45,726.80-10,763.35

Finding the Fourth Proportional to 30,485.30, 45,726.80 and 10,763.35

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Solution

The fourth proportional to 30,485.30, 45,726.80 and 10,763.35 is: 16,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,485.30 : 45,726.80 = 10,763.35 : x
  2. Step 2: Convert to fraction form
    30,485.30/45,726.80 = 10,763.35/x
  3. Step 3: Cross multiply
    30,485.30x = 45,726.80 × 10,763.35
  4. Step 4: Simplify right side
    30,485.30x = 492,173,384.65
  5. Step 5: Solve for x
    x = 492,173,384.65/30,485.30
  6. Step 6: Final answer
    x = 16,144.62

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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.