Home / 30,509.16-42,103.44-17,080.35

Finding the Fourth Proportional to 30,509.16, 42,103.44 and 17,080.35

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Solution

The fourth proportional to 30,509.16, 42,103.44 and 17,080.35 is: 23,571.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,509.16 : 42,103.44 = 17,080.35 : x
  2. Step 2: Convert to fraction form
    30,509.16/42,103.44 = 17,080.35/x
  3. Step 3: Cross multiply
    30,509.16x = 42,103.44 × 17,080.35
  4. Step 4: Simplify right side
    30,509.16x = 719,141,491.40
  5. Step 5: Solve for x
    x = 719,141,491.40/30,509.16
  6. Step 6: Final answer
    x = 23,571.33

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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.