Home / 39,685.85-59,529.11-10,103.69

Finding the Fourth Proportional to 39,685.85, 59,529.11 and 10,103.69

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Solution

The fourth proportional to 39,685.85, 59,529.11 and 10,103.69 is: 15,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,685.85 : 59,529.11 = 10,103.69 : x
  2. Step 2: Convert to fraction form
    39,685.85/59,529.11 = 10,103.69/x
  3. Step 3: Cross multiply
    39,685.85x = 59,529.11 × 10,103.69
  4. Step 4: Simplify right side
    39,685.85x = 601,463,673.42
  5. Step 5: Solve for x
    x = 601,463,673.42/39,685.85
  6. Step 6: Final answer
    x = 15,155.62

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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.