Home / 39,931.99-59,903.38-13,629.67

Finding the Fourth Proportional to 39,931.99, 59,903.38 and 13,629.67

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Solution

The fourth proportional to 39,931.99, 59,903.38 and 13,629.67 is: 20,446.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,931.99 : 59,903.38 = 13,629.67 : x
  2. Step 2: Convert to fraction form
    39,931.99/59,903.38 = 13,629.67/x
  3. Step 3: Cross multiply
    39,931.99x = 59,903.38 × 13,629.67
  4. Step 4: Simplify right side
    39,931.99x = 816,463,001.77
  5. Step 5: Solve for x
    x = 816,463,001.77/39,931.99
  6. Step 6: Final answer
    x = 20,446.34

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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.