Home / 39,274.20-58,913.16-12,978.36

Finding the Fourth Proportional to 39,274.20, 58,913.16 and 12,978.36

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Solution

The fourth proportional to 39,274.20, 58,913.16 and 12,978.36 is: 19,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,274.20 : 58,913.16 = 12,978.36 : x
  2. Step 2: Convert to fraction form
    39,274.20/58,913.16 = 12,978.36/x
  3. Step 3: Cross multiply
    39,274.20x = 58,913.16 × 12,978.36
  4. Step 4: Simplify right side
    39,274.20x = 764,596,199.22
  5. Step 5: Solve for x
    x = 764,596,199.22/39,274.20
  6. Step 6: Final answer
    x = 19,468.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.