Home / 28,617.83-39,492.90-15,871.26

Finding the Fourth Proportional to 28,617.83, 39,492.90 and 15,871.26

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Solution

The fourth proportional to 28,617.83, 39,492.90 and 15,871.26 is: 21,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.83 : 39,492.90 = 15,871.26 : x
  2. Step 2: Convert to fraction form
    28,617.83/39,492.90 = 15,871.26/x
  3. Step 3: Cross multiply
    28,617.83x = 39,492.90 × 15,871.26
  4. Step 4: Simplify right side
    28,617.83x = 626,802,103.43
  5. Step 5: Solve for x
    x = 626,802,103.43/28,617.83
  6. Step 6: Final answer
    x = 21,902.50

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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.