Home / 30,638.03-42,277.21-17,210.75

Finding the Fourth Proportional to 30,638.03, 42,277.21 and 17,210.75

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Solution

The fourth proportional to 30,638.03, 42,277.21 and 17,210.75 is: 23,748.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,638.03 : 42,277.21 = 17,210.75 : x
  2. Step 2: Convert to fraction form
    30,638.03/42,277.21 = 17,210.75/x
  3. Step 3: Cross multiply
    30,638.03x = 42,277.21 × 17,210.75
  4. Step 4: Simplify right side
    30,638.03x = 727,622,237.59
  5. Step 5: Solve for x
    x = 727,622,237.59/30,638.03
  6. Step 6: Final answer
    x = 23,748.99

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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.