Home / 21,447.51-29,598.38-12,015.75

Finding the Fourth Proportional to 21,447.51, 29,598.38 and 12,015.75

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Solution

The fourth proportional to 21,447.51, 29,598.38 and 12,015.75 is: 16,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.51 : 29,598.38 = 12,015.75 : x
  2. Step 2: Convert to fraction form
    21,447.51/29,598.38 = 12,015.75/x
  3. Step 3: Cross multiply
    21,447.51x = 29,598.38 × 12,015.75
  4. Step 4: Simplify right side
    21,447.51x = 355,646,674.41
  5. Step 5: Solve for x
    x = 355,646,674.41/21,447.51
  6. Step 6: Final answer
    x = 16,582.19

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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.