Home / 28,011.12-38,653.92-15,433.44

Finding the Fourth Proportional to 28,011.12, 38,653.92 and 15,433.44

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Solution

The fourth proportional to 28,011.12, 38,653.92 and 15,433.44 is: 21,297.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.12 : 38,653.92 = 15,433.44 : x
  2. Step 2: Convert to fraction form
    28,011.12/38,653.92 = 15,433.44/x
  3. Step 3: Cross multiply
    28,011.12x = 38,653.92 × 15,433.44
  4. Step 4: Simplify right side
    28,011.12x = 596,562,955.08
  5. Step 5: Solve for x
    x = 596,562,955.08/28,011.12
  6. Step 6: Final answer
    x = 21,297.36

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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.