Home / 25,785.06-38,690.76-12,291.48

Finding the Fourth Proportional to 25,785.06, 38,690.76 and 12,291.48

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Solution

The fourth proportional to 25,785.06, 38,690.76 and 12,291.48 is: 18,443.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.06 : 38,690.76 = 12,291.48 : x
  2. Step 2: Convert to fraction form
    25,785.06/38,690.76 = 12,291.48/x
  3. Step 3: Cross multiply
    25,785.06x = 38,690.76 × 12,291.48
  4. Step 4: Simplify right side
    25,785.06x = 475,566,702.72
  5. Step 5: Solve for x
    x = 475,566,702.72/25,785.06
  6. Step 6: Final answer
    x = 18,443.50

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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.