Home / 30,071.08-45,109.28-7,884.37

Finding the Fourth Proportional to 30,071.08, 45,109.28 and 7,884.37

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Solution

The fourth proportional to 30,071.08, 45,109.28 and 7,884.37 is: 11,827.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,071.08 : 45,109.28 = 7,884.37 : x
  2. Step 2: Convert to fraction form
    30,071.08/45,109.28 = 7,884.37/x
  3. Step 3: Cross multiply
    30,071.08x = 45,109.28 × 7,884.37
  4. Step 4: Simplify right side
    30,071.08x = 355,658,253.95
  5. Step 5: Solve for x
    x = 355,658,253.95/30,071.08
  6. Step 6: Final answer
    x = 11,827.25

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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.