Home / 15,430.29-23,145.43-4,338.09

Finding the Fourth Proportional to 15,430.29, 23,145.43 and 4,338.09

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Solution

The fourth proportional to 15,430.29, 23,145.43 and 4,338.09 is: 6,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.29 : 23,145.43 = 4,338.09 : x
  2. Step 2: Convert to fraction form
    15,430.29/23,145.43 = 4,338.09/x
  3. Step 3: Cross multiply
    15,430.29x = 23,145.43 × 4,338.09
  4. Step 4: Simplify right side
    15,430.29x = 100,406,958.43
  5. Step 5: Solve for x
    x = 100,406,958.43/15,430.29
  6. Step 6: Final answer
    x = 6,507.13

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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.