Home / 28,990.77-43,412.33-19,100.07

Finding the Fourth Proportional to 28,990.77, 43,412.33 and 19,100.07

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Solution

The fourth proportional to 28,990.77, 43,412.33 and 19,100.07 is: 28,601.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.77 : 43,412.33 = 19,100.07 : x
  2. Step 2: Convert to fraction form
    28,990.77/43,412.33 = 19,100.07/x
  3. Step 3: Cross multiply
    28,990.77x = 43,412.33 × 19,100.07
  4. Step 4: Simplify right side
    28,990.77x = 829,178,352.75
  5. Step 5: Solve for x
    x = 829,178,352.75/28,990.77
  6. Step 6: Final answer
    x = 28,601.46

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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.