Home / 21,050.28-29,048.40-12,091.48

Finding the Fourth Proportional to 21,050.28, 29,048.40 and 12,091.48

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Solution

The fourth proportional to 21,050.28, 29,048.40 and 12,091.48 is: 16,685.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.28 : 29,048.40 = 12,091.48 : x
  2. Step 2: Convert to fraction form
    21,050.28/29,048.40 = 12,091.48/x
  3. Step 3: Cross multiply
    21,050.28x = 29,048.40 × 12,091.48
  4. Step 4: Simplify right side
    21,050.28x = 351,238,147.63
  5. Step 5: Solve for x
    x = 351,238,147.63/21,050.28
  6. Step 6: Final answer
    x = 16,685.68

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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.