Home / 21,486.09-29,652.30-12,055.26

Finding the Fourth Proportional to 21,486.09, 29,652.30 and 12,055.26

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Solution

The fourth proportional to 21,486.09, 29,652.30 and 12,055.26 is: 16,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.09 : 29,652.30 = 12,055.26 : x
  2. Step 2: Convert to fraction form
    21,486.09/29,652.30 = 12,055.26/x
  3. Step 3: Cross multiply
    21,486.09x = 29,652.30 × 12,055.26
  4. Step 4: Simplify right side
    21,486.09x = 357,466,186.10
  5. Step 5: Solve for x
    x = 357,466,186.10/21,486.09
  6. Step 6: Final answer
    x = 16,637.10

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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.