Home / 28,956.08-39,968.84-17,019.12

Finding the Fourth Proportional to 28,956.08, 39,968.84 and 17,019.12

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Solution

The fourth proportional to 28,956.08, 39,968.84 and 17,019.12 is: 23,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.08 : 39,968.84 = 17,019.12 : x
  2. Step 2: Convert to fraction form
    28,956.08/39,968.84 = 17,019.12/x
  3. Step 3: Cross multiply
    28,956.08x = 39,968.84 × 17,019.12
  4. Step 4: Simplify right side
    28,956.08x = 680,234,484.22
  5. Step 5: Solve for x
    x = 680,234,484.22/28,956.08
  6. Step 6: Final answer
    x = 23,491.94

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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.