Home / 21,973.60-30,325.43-12,415.24

Finding the Fourth Proportional to 21,973.60, 30,325.43 and 12,415.24

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Solution

The fourth proportional to 21,973.60, 30,325.43 and 12,415.24 is: 17,134.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,973.60 : 30,325.43 = 12,415.24 : x
  2. Step 2: Convert to fraction form
    21,973.60/30,325.43 = 12,415.24/x
  3. Step 3: Cross multiply
    21,973.60x = 30,325.43 × 12,415.24
  4. Step 4: Simplify right side
    21,973.60x = 376,497,491.55
  5. Step 5: Solve for x
    x = 376,497,491.55/21,973.60
  6. Step 6: Final answer
    x = 17,134.08

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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.