Home / 21,302.21-29,393.59-12,347.96

Finding the Fourth Proportional to 21,302.21, 29,393.59 and 12,347.96

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Solution

The fourth proportional to 21,302.21, 29,393.59 and 12,347.96 is: 17,038.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.21 : 29,393.59 = 12,347.96 : x
  2. Step 2: Convert to fraction form
    21,302.21/29,393.59 = 12,347.96/x
  3. Step 3: Cross multiply
    21,302.21x = 29,393.59 × 12,347.96
  4. Step 4: Simplify right side
    21,302.21x = 362,950,873.58
  5. Step 5: Solve for x
    x = 362,950,873.58/21,302.21
  6. Step 6: Final answer
    x = 17,038.18

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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.