Home / 21,973.77-30,325.66-12,415.41

Finding the Fourth Proportional to 21,973.77, 30,325.66 and 12,415.41

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Solution

The fourth proportional to 21,973.77, 30,325.66 and 12,415.41 is: 17,134.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,973.77 : 30,325.66 = 12,415.41 : x
  2. Step 2: Convert to fraction form
    21,973.77/30,325.66 = 12,415.41/x
  3. Step 3: Cross multiply
    21,973.77x = 30,325.66 × 12,415.41
  4. Step 4: Simplify right side
    21,973.77x = 376,505,502.42
  5. Step 5: Solve for x
    x = 376,505,502.42/21,973.77
  6. Step 6: Final answer
    x = 17,134.32

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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.