Home / 21,205.38-29,254.59-12,246.51

Finding the Fourth Proportional to 21,205.38, 29,254.59 and 12,246.51

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Solution

The fourth proportional to 21,205.38, 29,254.59 and 12,246.51 is: 16,895.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205.38 : 29,254.59 = 12,246.51 : x
  2. Step 2: Convert to fraction form
    21,205.38/29,254.59 = 12,246.51/x
  3. Step 3: Cross multiply
    21,205.38x = 29,254.59 × 12,246.51
  4. Step 4: Simplify right side
    21,205.38x = 358,266,628.98
  5. Step 5: Solve for x
    x = 358,266,628.98/21,205.38
  6. Step 6: Final answer
    x = 16,895.08

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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.