Home / 30,186.04-45,281.10-7,999.16

Finding the Fourth Proportional to 30,186.04, 45,281.10 and 7,999.16

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Solution

The fourth proportional to 30,186.04, 45,281.10 and 7,999.16 is: 11,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.04 : 45,281.10 = 7,999.16 : x
  2. Step 2: Convert to fraction form
    30,186.04/45,281.10 = 7,999.16/x
  3. Step 3: Cross multiply
    30,186.04x = 45,281.10 × 7,999.16
  4. Step 4: Simplify right side
    30,186.04x = 362,210,763.88
  5. Step 5: Solve for x
    x = 362,210,763.88/30,186.04
  6. Step 6: Final answer
    x = 11,999.28

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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.