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Finding the Fourth Proportional to 35,992.32, 53,988.84 and 12,619.32

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Solution

The fourth proportional to 35,992.32, 53,988.84 and 12,619.32 is: 18,929.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,992.32 : 53,988.84 = 12,619.32 : x
  2. Step 2: Convert to fraction form
    35,992.32/53,988.84 = 12,619.32/x
  3. Step 3: Cross multiply
    35,992.32x = 53,988.84 × 12,619.32
  4. Step 4: Simplify right side
    35,992.32x = 681,302,448.39
  5. Step 5: Solve for x
    x = 681,302,448.39/35,992.32
  6. Step 6: Final answer
    x = 18,929.11

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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.