Home / 28,748.68-43,119.62-7,690.35

Finding the Fourth Proportional to 28,748.68, 43,119.62 and 7,690.35

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Solution

The fourth proportional to 28,748.68, 43,119.62 and 7,690.35 is: 11,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.68 : 43,119.62 = 7,690.35 : x
  2. Step 2: Convert to fraction form
    28,748.68/43,119.62 = 7,690.35/x
  3. Step 3: Cross multiply
    28,748.68x = 43,119.62 × 7,690.35
  4. Step 4: Simplify right side
    28,748.68x = 331,604,931.22
  5. Step 5: Solve for x
    x = 331,604,931.22/28,748.68
  6. Step 6: Final answer
    x = 11,534.62

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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.