Home / 30,125.09-45,188.24-21,203.93

Finding the Fourth Proportional to 30,125.09, 45,188.24 and 21,203.93

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Solution

The fourth proportional to 30,125.09, 45,188.24 and 21,203.93 is: 31,806.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.09 : 45,188.24 = 21,203.93 : x
  2. Step 2: Convert to fraction form
    30,125.09/45,188.24 = 21,203.93/x
  3. Step 3: Cross multiply
    30,125.09x = 45,188.24 × 21,203.93
  4. Step 4: Simplify right side
    30,125.09x = 958,168,171.76
  5. Step 5: Solve for x
    x = 958,168,171.76/30,125.09
  6. Step 6: Final answer
    x = 31,806.32

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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.