Home / 21,187.02-29,238.37-11,626.98

Finding the Fourth Proportional to 21,187.02, 29,238.37 and 11,626.98

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Solution

The fourth proportional to 21,187.02, 29,238.37 and 11,626.98 is: 16,045.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187.02 : 29,238.37 = 11,626.98 : x
  2. Step 2: Convert to fraction form
    21,187.02/29,238.37 = 11,626.98/x
  3. Step 3: Cross multiply
    21,187.02x = 29,238.37 × 11,626.98
  4. Step 4: Simplify right side
    21,187.02x = 339,953,927.86
  5. Step 5: Solve for x
    x = 339,953,927.86/21,187.02
  6. Step 6: Final answer
    x = 16,045.39

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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.