Home / 39,975.76-59,963.68-10,391.12

Finding the Fourth Proportional to 39,975.76, 59,963.68 and 10,391.12

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Solution

The fourth proportional to 39,975.76, 59,963.68 and 10,391.12 is: 15,586.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.76 : 59,963.68 = 10,391.12 : x
  2. Step 2: Convert to fraction form
    39,975.76/59,963.68 = 10,391.12/x
  3. Step 3: Cross multiply
    39,975.76x = 59,963.68 × 10,391.12
  4. Step 4: Simplify right side
    39,975.76x = 623,089,794.52
  5. Step 5: Solve for x
    x = 623,089,794.52/39,975.76
  6. Step 6: Final answer
    x = 15,586.69

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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.