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Finding the Fourth Proportional to 30,985.32, 46,477.88 and 8,798.72

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Solution

The fourth proportional to 30,985.32, 46,477.88 and 8,798.72 is: 13,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985.32 : 46,477.88 = 8,798.72 : x
  2. Step 2: Convert to fraction form
    30,985.32/46,477.88 = 8,798.72/x
  3. Step 3: Cross multiply
    30,985.32x = 46,477.88 × 8,798.72
  4. Step 4: Simplify right side
    30,985.32x = 408,945,852.31
  5. Step 5: Solve for x
    x = 408,945,852.31/30,985.32
  6. Step 6: Final answer
    x = 13,198.05

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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.