Home / 39,293.40-58,931.64-12,992.16

Finding the Fourth Proportional to 39,293.40, 58,931.64 and 12,992.16

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Solution

The fourth proportional to 39,293.40, 58,931.64 and 12,992.16 is: 19,485.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.40 : 58,931.64 = 12,992.16 : x
  2. Step 2: Convert to fraction form
    39,293.40/58,931.64 = 12,992.16/x
  3. Step 3: Cross multiply
    39,293.40x = 58,931.64 × 12,992.16
  4. Step 4: Simplify right side
    39,293.40x = 765,649,295.94
  5. Step 5: Solve for x
    x = 765,649,295.94/39,293.40
  6. Step 6: Final answer
    x = 19,485.44

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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.