Home / 21,302.63-29,396.40-12,226.07

Finding the Fourth Proportional to 21,302.63, 29,396.40 and 12,226.07

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Solution

The fourth proportional to 21,302.63, 29,396.40 and 12,226.07 is: 16,871.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.63 : 29,396.40 = 12,226.07 : x
  2. Step 2: Convert to fraction form
    21,302.63/29,396.40 = 12,226.07/x
  3. Step 3: Cross multiply
    21,302.63x = 29,396.40 × 12,226.07
  4. Step 4: Simplify right side
    21,302.63x = 359,402,297.17
  5. Step 5: Solve for x
    x = 359,402,297.17/21,302.63
  6. Step 6: Final answer
    x = 16,871.27

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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.