Home / 21,325.69-29,435.30-12,376.07

Finding the Fourth Proportional to 21,325.69, 29,435.30 and 12,376.07

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Solution

The fourth proportional to 21,325.69, 29,435.30 and 12,376.07 is: 17,082.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.69 : 29,435.30 = 12,376.07 : x
  2. Step 2: Convert to fraction form
    21,325.69/29,435.30 = 12,376.07/x
  3. Step 3: Cross multiply
    21,325.69x = 29,435.30 × 12,376.07
  4. Step 4: Simplify right side
    21,325.69x = 364,293,364.21
  5. Step 5: Solve for x
    x = 364,293,364.21/21,325.69
  6. Step 6: Final answer
    x = 17,082.38

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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.