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Finding the Fourth Proportional to 30,525.94, 45,788.60 and 8,339.32

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Solution

The fourth proportional to 30,525.94, 45,788.60 and 8,339.32 is: 12,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525.94 : 45,788.60 = 8,339.32 : x
  2. Step 2: Convert to fraction form
    30,525.94/45,788.60 = 8,339.32/x
  3. Step 3: Cross multiply
    30,525.94x = 45,788.60 × 8,339.32
  4. Step 4: Simplify right side
    30,525.94x = 381,845,746.06
  5. Step 5: Solve for x
    x = 381,845,746.06/30,525.94
  6. Step 6: Final answer
    x = 12,508.89

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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.