Home / 28,617.58-39,492.12-18,021.16

Finding the Fourth Proportional to 28,617.58, 39,492.12 and 18,021.16

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Solution

The fourth proportional to 28,617.58, 39,492.12 and 18,021.16 is: 24,869.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.58 : 39,492.12 = 18,021.16 : x
  2. Step 2: Convert to fraction form
    28,617.58/39,492.12 = 18,021.16/x
  3. Step 3: Cross multiply
    28,617.58x = 39,492.12 × 18,021.16
  4. Step 4: Simplify right side
    28,617.58x = 711,693,813.26
  5. Step 5: Solve for x
    x = 711,693,813.26/28,617.58
  6. Step 6: Final answer
    x = 24,869.11

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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.