Home / 39,975.12-59,975.64-19,200.24

Finding the Fourth Proportional to 39,975.12, 59,975.64 and 19,200.24

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Solution

The fourth proportional to 39,975.12, 59,975.64 and 19,200.24 is: 28,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.12 : 59,975.64 = 19,200.24 : x
  2. Step 2: Convert to fraction form
    39,975.12/59,975.64 = 19,200.24/x
  3. Step 3: Cross multiply
    39,975.12x = 59,975.64 × 19,200.24
  4. Step 4: Simplify right side
    39,975.12x = 1,151,546,682.15
  5. Step 5: Solve for x
    x = 1,151,546,682.15/39,975.12
  6. Step 6: Final answer
    x = 28,806.58

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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.