Home / 21,407.14-29,541.40-11,847.02

Finding the Fourth Proportional to 21,407.14, 29,541.40 and 11,847.02

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Solution

The fourth proportional to 21,407.14, 29,541.40 and 11,847.02 is: 16,348.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.14 : 29,541.40 = 11,847.02 : x
  2. Step 2: Convert to fraction form
    21,407.14/29,541.40 = 11,847.02/x
  3. Step 3: Cross multiply
    21,407.14x = 29,541.40 × 11,847.02
  4. Step 4: Simplify right side
    21,407.14x = 349,977,556.63
  5. Step 5: Solve for x
    x = 349,977,556.63/21,407.14
  6. Step 6: Final answer
    x = 16,348.64

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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.