Home / 26,478.84-39,670.88-17,687.12

Finding the Fourth Proportional to 26,478.84, 39,670.88 and 17,687.12

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Solution

The fourth proportional to 26,478.84, 39,670.88 and 17,687.12 is: 26,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.84 : 39,670.88 = 17,687.12 : x
  2. Step 2: Convert to fraction form
    26,478.84/39,670.88 = 17,687.12/x
  3. Step 3: Cross multiply
    26,478.84x = 39,670.88 × 17,687.12
  4. Step 4: Simplify right side
    26,478.84x = 701,663,615.07
  5. Step 5: Solve for x
    x = 701,663,615.07/26,478.84
  6. Step 6: Final answer
    x = 26,499.03

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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.