Home / 30,889.14-42,626.91-16,742.01

Finding the Fourth Proportional to 30,889.14, 42,626.91 and 16,742.01

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Solution

The fourth proportional to 30,889.14, 42,626.91 and 16,742.01 is: 23,103.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,889.14 : 42,626.91 = 16,742.01 : x
  2. Step 2: Convert to fraction form
    30,889.14/42,626.91 = 16,742.01/x
  3. Step 3: Cross multiply
    30,889.14x = 42,626.91 × 16,742.01
  4. Step 4: Simplify right side
    30,889.14x = 713,660,153.49
  5. Step 5: Solve for x
    x = 713,660,153.49/30,889.14
  6. Step 6: Final answer
    x = 23,103.92

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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.