Home / 28,185.21-38,925.09-19,255.77

Finding the Fourth Proportional to 28,185.21, 38,925.09 and 19,255.77

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Solution

The fourth proportional to 28,185.21, 38,925.09 and 19,255.77 is: 26,593.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.21 : 38,925.09 = 19,255.77 : x
  2. Step 2: Convert to fraction form
    28,185.21/38,925.09 = 19,255.77/x
  3. Step 3: Cross multiply
    28,185.21x = 38,925.09 × 19,255.77
  4. Step 4: Simplify right side
    28,185.21x = 749,532,580.27
  5. Step 5: Solve for x
    x = 749,532,580.27/28,185.21
  6. Step 6: Final answer
    x = 26,593.12

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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.