Home / 39,879.86-55,031.01-23,113.94

Finding the Fourth Proportional to 39,879.86, 55,031.01 and 23,113.94

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Solution

The fourth proportional to 39,879.86, 55,031.01 and 23,113.94 is: 31,895.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,879.86 : 55,031.01 = 23,113.94 : x
  2. Step 2: Convert to fraction form
    39,879.86/55,031.01 = 23,113.94/x
  3. Step 3: Cross multiply
    39,879.86x = 55,031.01 × 23,113.94
  4. Step 4: Simplify right side
    39,879.86x = 1,271,983,463.28
  5. Step 5: Solve for x
    x = 1,271,983,463.28/39,879.86
  6. Step 6: Final answer
    x = 31,895.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.