Home / 30,060.12-45,100.54-13,431.64

Finding the Fourth Proportional to 30,060.12, 45,100.54 and 13,431.64

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Solution

The fourth proportional to 30,060.12, 45,100.54 and 13,431.64 is: 20,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,060.12 : 45,100.54 = 13,431.64 : x
  2. Step 2: Convert to fraction form
    30,060.12/45,100.54 = 13,431.64/x
  3. Step 3: Cross multiply
    30,060.12x = 45,100.54 × 13,431.64
  4. Step 4: Simplify right side
    30,060.12x = 605,774,217.09
  5. Step 5: Solve for x
    x = 605,774,217.09/30,060.12
  6. Step 6: Final answer
    x = 20,152.09

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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.