Home / 21,060.95-29,065.64-12,111.26

Finding the Fourth Proportional to 21,060.95, 29,065.64 and 12,111.26

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Solution

The fourth proportional to 21,060.95, 29,065.64 and 12,111.26 is: 16,714.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.95 : 29,065.64 = 12,111.26 : x
  2. Step 2: Convert to fraction form
    21,060.95/29,065.64 = 12,111.26/x
  3. Step 3: Cross multiply
    21,060.95x = 29,065.64 × 12,111.26
  4. Step 4: Simplify right side
    21,060.95x = 352,021,317.22
  5. Step 5: Solve for x
    x = 352,021,317.22/21,060.95
  6. Step 6: Final answer
    x = 16,714.41

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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.