Home / 21,416.46-29,554.77-11,985.02

Finding the Fourth Proportional to 21,416.46, 29,554.77 and 11,985.02

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Solution

The fourth proportional to 21,416.46, 29,554.77 and 11,985.02 is: 16,539.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.46 : 29,554.77 = 11,985.02 : x
  2. Step 2: Convert to fraction form
    21,416.46/29,554.77 = 11,985.02/x
  3. Step 3: Cross multiply
    21,416.46x = 29,554.77 × 11,985.02
  4. Step 4: Simplify right side
    21,416.46x = 354,214,509.55
  5. Step 5: Solve for x
    x = 354,214,509.55/21,416.46
  6. Step 6: Final answer
    x = 16,539.36

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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.