Home / 21,368.96-29,487.03-12,416.84

Finding the Fourth Proportional to 21,368.96, 29,487.03 and 12,416.84

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Solution

The fourth proportional to 21,368.96, 29,487.03 and 12,416.84 is: 17,134.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.96 : 29,487.03 = 12,416.84 : x
  2. Step 2: Convert to fraction form
    21,368.96/29,487.03 = 12,416.84/x
  3. Step 3: Cross multiply
    21,368.96x = 29,487.03 × 12,416.84
  4. Step 4: Simplify right side
    21,368.96x = 366,135,733.59
  5. Step 5: Solve for x
    x = 366,135,733.59/21,368.96
  6. Step 6: Final answer
    x = 17,134.00

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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.