Home / 21,790.41-30,058.25-13,818.93

Finding the Fourth Proportional to 21,790.41, 30,058.25 and 13,818.93

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Solution

The fourth proportional to 21,790.41, 30,058.25 and 13,818.93 is: 19,062.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.41 : 30,058.25 = 13,818.93 : x
  2. Step 2: Convert to fraction form
    21,790.41/30,058.25 = 13,818.93/x
  3. Step 3: Cross multiply
    21,790.41x = 30,058.25 × 13,818.93
  4. Step 4: Simplify right side
    21,790.41x = 415,372,852.67
  5. Step 5: Solve for x
    x = 415,372,852.67/21,790.41
  6. Step 6: Final answer
    x = 19,062.19

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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.