Home / 35,991.78-53,988.63-12,619.62

Finding the Fourth Proportional to 35,991.78, 53,988.63 and 12,619.62

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Solution

The fourth proportional to 35,991.78, 53,988.63 and 12,619.62 is: 18,929.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,991.78 : 53,988.63 = 12,619.62 : x
  2. Step 2: Convert to fraction form
    35,991.78/53,988.63 = 12,619.62/x
  3. Step 3: Cross multiply
    35,991.78x = 53,988.63 × 12,619.62
  4. Step 4: Simplify right side
    35,991.78x = 681,315,994.92
  5. Step 5: Solve for x
    x = 681,315,994.92/35,991.78
  6. Step 6: Final answer
    x = 18,929.77

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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.