Home / 30,640.35-45,973.55-17,315.17

Finding the Fourth Proportional to 30,640.35, 45,973.55 and 17,315.17

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Solution

The fourth proportional to 30,640.35, 45,973.55 and 17,315.17 is: 25,980.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,640.35 : 45,973.55 = 17,315.17 : x
  2. Step 2: Convert to fraction form
    30,640.35/45,973.55 = 17,315.17/x
  3. Step 3: Cross multiply
    30,640.35x = 45,973.55 × 17,315.17
  4. Step 4: Simplify right side
    30,640.35x = 796,039,833.75
  5. Step 5: Solve for x
    x = 796,039,833.75/30,640.35
  6. Step 6: Final answer
    x = 25,980.12

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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.