Home / 43,138.28-64,681.90-16,812.30

Finding the Fourth Proportional to 43,138.28, 64,681.90 and 16,812.30

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Solution

The fourth proportional to 43,138.28, 64,681.90 and 16,812.30 is: 25,208.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138.28 : 64,681.90 = 16,812.30 : x
  2. Step 2: Convert to fraction form
    43,138.28/64,681.90 = 16,812.30/x
  3. Step 3: Cross multiply
    43,138.28x = 64,681.90 × 16,812.30
  4. Step 4: Simplify right side
    43,138.28x = 1,087,451,507.37
  5. Step 5: Solve for x
    x = 1,087,451,507.37/43,138.28
  6. Step 6: Final answer
    x = 25,208.50

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1.5x scale

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.