Home / 30,326.40-45,495.74-12,796.20

Finding the Fourth Proportional to 30,326.40, 45,495.74 and 12,796.20

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Solution

The fourth proportional to 30,326.40, 45,495.74 and 12,796.20 is: 19,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,326.40 : 45,495.74 = 12,796.20 : x
  2. Step 2: Convert to fraction form
    30,326.40/45,495.74 = 12,796.20/x
  3. Step 3: Cross multiply
    30,326.40x = 45,495.74 × 12,796.20
  4. Step 4: Simplify right side
    30,326.40x = 582,172,588.19
  5. Step 5: Solve for x
    x = 582,172,588.19/30,326.40
  6. Step 6: Final answer
    x = 19,196.89

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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.