Home / 35,315.42-48,713.68-20,965.51

Finding the Fourth Proportional to 35,315.42, 48,713.68 and 20,965.51

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Solution

The fourth proportional to 35,315.42, 48,713.68 and 20,965.51 is: 28,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,315.42 : 48,713.68 = 20,965.51 : x
  2. Step 2: Convert to fraction form
    35,315.42/48,713.68 = 20,965.51/x
  3. Step 3: Cross multiply
    35,315.42x = 48,713.68 × 20,965.51
  4. Step 4: Simplify right side
    35,315.42x = 1,021,307,036.30
  5. Step 5: Solve for x
    x = 1,021,307,036.30/35,315.42
  6. Step 6: Final answer
    x = 28,919.58

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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.