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Finding the Fourth Proportional to 39,662.65, 59,482.92 and 12,999.25

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Solution

The fourth proportional to 39,662.65, 59,482.92 and 12,999.25 is: 19,495.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,662.65 : 59,482.92 = 12,999.25 : x
  2. Step 2: Convert to fraction form
    39,662.65/59,482.92 = 12,999.25/x
  3. Step 3: Cross multiply
    39,662.65x = 59,482.92 × 12,999.25
  4. Step 4: Simplify right side
    39,662.65x = 773,233,199.10
  5. Step 5: Solve for x
    x = 773,233,199.10/39,662.65
  6. Step 6: Final answer
    x = 19,495.25

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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.