Home / 30,568.55-42,186.62-17,140.67

Finding the Fourth Proportional to 30,568.55, 42,186.62 and 17,140.67

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Solution

The fourth proportional to 30,568.55, 42,186.62 and 17,140.67 is: 23,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,568.55 : 42,186.62 = 17,140.67 : x
  2. Step 2: Convert to fraction form
    30,568.55/42,186.62 = 17,140.67/x
  3. Step 3: Cross multiply
    30,568.55x = 42,186.62 × 17,140.67
  4. Step 4: Simplify right side
    30,568.55x = 723,106,635.20
  5. Step 5: Solve for x
    x = 723,106,635.20/30,568.55
  6. Step 6: Final answer
    x = 23,655.25

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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.