Home / 39,889.77-55,038.21-22,658.30

Finding the Fourth Proportional to 39,889.77, 55,038.21 and 22,658.30

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Solution

The fourth proportional to 39,889.77, 55,038.21 and 22,658.30 is: 31,262.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,889.77 : 55,038.21 = 22,658.30 : x
  2. Step 2: Convert to fraction form
    39,889.77/55,038.21 = 22,658.30/x
  3. Step 3: Cross multiply
    39,889.77x = 55,038.21 × 22,658.30
  4. Step 4: Simplify right side
    39,889.77x = 1,247,072,273.64
  5. Step 5: Solve for x
    x = 1,247,072,273.64/39,889.77
  6. Step 6: Final answer
    x = 31,262.96

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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.