Home / 28,611.05-42,918.45-9,892.89

Finding the Fourth Proportional to 28,611.05, 42,918.45 and 9,892.89

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Solution

The fourth proportional to 28,611.05, 42,918.45 and 9,892.89 is: 14,839.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.05 : 42,918.45 = 9,892.89 : x
  2. Step 2: Convert to fraction form
    28,611.05/42,918.45 = 9,892.89/x
  3. Step 3: Cross multiply
    28,611.05x = 42,918.45 × 9,892.89
  4. Step 4: Simplify right side
    28,611.05x = 424,587,504.82
  5. Step 5: Solve for x
    x = 424,587,504.82/28,611.05
  6. Step 6: Final answer
    x = 14,839.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.