Home / 28,104.42-42,159.06-11,465.64

Finding the Fourth Proportional to 28,104.42, 42,159.06 and 11,465.64

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Solution

The fourth proportional to 28,104.42, 42,159.06 and 11,465.64 is: 17,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.42 : 42,159.06 = 11,465.64 : x
  2. Step 2: Convert to fraction form
    28,104.42/42,159.06 = 11,465.64/x
  3. Step 3: Cross multiply
    28,104.42x = 42,159.06 × 11,465.64
  4. Step 4: Simplify right side
    28,104.42x = 483,380,604.70
  5. Step 5: Solve for x
    x = 483,380,604.70/28,104.42
  6. Step 6: Final answer
    x = 17,199.45

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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.