Home / 28,235.13-38,971.57-19,175.83

Finding the Fourth Proportional to 28,235.13, 38,971.57 and 19,175.83

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Solution

The fourth proportional to 28,235.13, 38,971.57 and 19,175.83 is: 26,467.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.13 : 38,971.57 = 19,175.83 : x
  2. Step 2: Convert to fraction form
    28,235.13/38,971.57 = 19,175.83/x
  3. Step 3: Cross multiply
    28,235.13x = 38,971.57 × 19,175.83
  4. Step 4: Simplify right side
    28,235.13x = 747,312,055.78
  5. Step 5: Solve for x
    x = 747,312,055.78/28,235.13
  6. Step 6: Final answer
    x = 26,467.46

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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.