Home / 30,210.08-45,304.30-11,485.12

Finding the Fourth Proportional to 30,210.08, 45,304.30 and 11,485.12

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Solution

The fourth proportional to 30,210.08, 45,304.30 and 11,485.12 is: 17,223.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.08 : 45,304.30 = 11,485.12 : x
  2. Step 2: Convert to fraction form
    30,210.08/45,304.30 = 11,485.12/x
  3. Step 3: Cross multiply
    30,210.08x = 45,304.30 × 11,485.12
  4. Step 4: Simplify right side
    30,210.08x = 520,325,322.02
  5. Step 5: Solve for x
    x = 520,325,322.02/30,210.08
  6. Step 6: Final answer
    x = 17,223.57

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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.