Home / 30,206.12-41,681.40-17,638.16

Finding the Fourth Proportional to 30,206.12, 41,681.40 and 17,638.16

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Solution

The fourth proportional to 30,206.12, 41,681.40 and 17,638.16 is: 24,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.12 : 41,681.40 = 17,638.16 : x
  2. Step 2: Convert to fraction form
    30,206.12/41,681.40 = 17,638.16/x
  3. Step 3: Cross multiply
    30,206.12x = 41,681.40 × 17,638.16
  4. Step 4: Simplify right side
    30,206.12x = 735,183,202.22
  5. Step 5: Solve for x
    x = 735,183,202.22/30,206.12
  6. Step 6: Final answer
    x = 24,338.88

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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.