Home / 38,782.16-58,182.36-12,485.92

Finding the Fourth Proportional to 38,782.16, 58,182.36 and 12,485.92

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Solution

The fourth proportional to 38,782.16, 58,182.36 and 12,485.92 is: 18,731.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.16 : 58,182.36 = 12,485.92 : x
  2. Step 2: Convert to fraction form
    38,782.16/58,182.36 = 12,485.92/x
  3. Step 3: Cross multiply
    38,782.16x = 58,182.36 × 12,485.92
  4. Step 4: Simplify right side
    38,782.16x = 726,460,292.37
  5. Step 5: Solve for x
    x = 726,460,292.37/38,782.16
  6. Step 6: Final answer
    x = 18,731.82

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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.