Home / 28,316.98-39,058.32-21,586.96

Finding the Fourth Proportional to 28,316.98, 39,058.32 and 21,586.96

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Solution

The fourth proportional to 28,316.98, 39,058.32 and 21,586.96 is: 29,775.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.98 : 39,058.32 = 21,586.96 : x
  2. Step 2: Convert to fraction form
    28,316.98/39,058.32 = 21,586.96/x
  3. Step 3: Cross multiply
    28,316.98x = 39,058.32 × 21,586.96
  4. Step 4: Simplify right side
    28,316.98x = 843,150,391.51
  5. Step 5: Solve for x
    x = 843,150,391.51/28,316.98
  6. Step 6: Final answer
    x = 29,775.43

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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.