Home / 38,558.40-57,826.80-12,271.20

Finding the Fourth Proportional to 38,558.40, 57,826.80 and 12,271.20

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Solution

The fourth proportional to 38,558.40, 57,826.80 and 12,271.20 is: 18,403.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,558.40 : 57,826.80 = 12,271.20 : x
  2. Step 2: Convert to fraction form
    38,558.40/57,826.80 = 12,271.20/x
  3. Step 3: Cross multiply
    38,558.40x = 57,826.80 × 12,271.20
  4. Step 4: Simplify right side
    38,558.40x = 709,604,228.16
  5. Step 5: Solve for x
    x = 709,604,228.16/38,558.40
  6. Step 6: Final answer
    x = 18,403.36

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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.