Home / 43,089.78-64,635.75-11,925.30

Finding the Fourth Proportional to 43,089.78, 64,635.75 and 11,925.30

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Solution

The fourth proportional to 43,089.78, 64,635.75 and 11,925.30 is: 17,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,089.78 : 64,635.75 = 11,925.30 : x
  2. Step 2: Convert to fraction form
    43,089.78/64,635.75 = 11,925.30/x
  3. Step 3: Cross multiply
    43,089.78x = 64,635.75 × 11,925.30
  4. Step 4: Simplify right side
    43,089.78x = 770,800,709.48
  5. Step 5: Solve for x
    x = 770,800,709.48/43,089.78
  6. Step 6: Final answer
    x = 17,888.25

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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.