Home / 28,055.51-38,699.39-19,107.03

Finding the Fourth Proportional to 28,055.51, 38,699.39 and 19,107.03

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Solution

The fourth proportional to 28,055.51, 38,699.39 and 19,107.03 is: 26,355.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.51 : 38,699.39 = 19,107.03 : x
  2. Step 2: Convert to fraction form
    28,055.51/38,699.39 = 19,107.03/x
  3. Step 3: Cross multiply
    28,055.51x = 38,699.39 × 19,107.03
  4. Step 4: Simplify right side
    28,055.51x = 739,430,310.18
  5. Step 5: Solve for x
    x = 739,430,310.18/28,055.51
  6. Step 6: Final answer
    x = 26,355.98

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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.