Home / 21,325.15-29,428.37-12,374.19

Finding the Fourth Proportional to 21,325.15, 29,428.37 and 12,374.19

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Solution

The fourth proportional to 21,325.15, 29,428.37 and 12,374.19 is: 17,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.15 : 29,428.37 = 12,374.19 : x
  2. Step 2: Convert to fraction form
    21,325.15/29,428.37 = 12,374.19/x
  3. Step 3: Cross multiply
    21,325.15x = 29,428.37 × 12,374.19
  4. Step 4: Simplify right side
    21,325.15x = 364,152,241.77
  5. Step 5: Solve for x
    x = 364,152,241.77/21,325.15
  6. Step 6: Final answer
    x = 17,076.19

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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.