Home / 28,902.96-39,892.68-18,307.08

Finding the Fourth Proportional to 28,902.96, 39,892.68 and 18,307.08

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Solution

The fourth proportional to 28,902.96, 39,892.68 and 18,307.08 is: 25,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.96 : 39,892.68 = 18,307.08 : x
  2. Step 2: Convert to fraction form
    28,902.96/39,892.68 = 18,307.08/x
  3. Step 3: Cross multiply
    28,902.96x = 39,892.68 × 18,307.08
  4. Step 4: Simplify right side
    28,902.96x = 730,318,484.17
  5. Step 5: Solve for x
    x = 730,318,484.17/28,902.96
  6. Step 6: Final answer
    x = 25,267.95

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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.