Home / 30,431.13-45,646.68-11,459.34

Finding the Fourth Proportional to 30,431.13, 45,646.68 and 11,459.34

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Solution

The fourth proportional to 30,431.13, 45,646.68 and 11,459.34 is: 17,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,431.13 : 45,646.68 = 11,459.34 : x
  2. Step 2: Convert to fraction form
    30,431.13/45,646.68 = 11,459.34/x
  3. Step 3: Cross multiply
    30,431.13x = 45,646.68 × 11,459.34
  4. Step 4: Simplify right side
    30,431.13x = 523,080,825.99
  5. Step 5: Solve for x
    x = 523,080,825.99/30,431.13
  6. Step 6: Final answer
    x = 17,189.00

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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.