Home / 35,991.21-49,656.86-20,878.63

Finding the Fourth Proportional to 35,991.21, 49,656.86 and 20,878.63

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Solution

The fourth proportional to 35,991.21, 49,656.86 and 20,878.63 is: 28,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,991.21 : 49,656.86 = 20,878.63 : x
  2. Step 2: Convert to fraction form
    35,991.21/49,656.86 = 20,878.63/x
  3. Step 3: Cross multiply
    35,991.21x = 49,656.86 × 20,878.63
  4. Step 4: Simplify right side
    35,991.21x = 1,036,767,102.51
  5. Step 5: Solve for x
    x = 1,036,767,102.51/35,991.21
  6. Step 6: Final answer
    x = 28,806.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.