Home / 28,492.94-39,316.86-15,745.35

Finding the Fourth Proportional to 28,492.94, 39,316.86 and 15,745.35

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Solution

The fourth proportional to 28,492.94, 39,316.86 and 15,745.35 is: 21,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.94 : 39,316.86 = 15,745.35 : x
  2. Step 2: Convert to fraction form
    28,492.94/39,316.86 = 15,745.35/x
  3. Step 3: Cross multiply
    28,492.94x = 39,316.86 × 15,745.35
  4. Step 4: Simplify right side
    28,492.94x = 619,057,721.60
  5. Step 5: Solve for x
    x = 619,057,721.60/28,492.94
  6. Step 6: Final answer
    x = 21,726.71

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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.