Home / 15,438.39-23,161.29-4,345.03

Finding the Fourth Proportional to 15,438.39, 23,161.29 and 4,345.03

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Solution

The fourth proportional to 15,438.39, 23,161.29 and 4,345.03 is: 6,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.39 : 23,161.29 = 4,345.03 : x
  2. Step 2: Convert to fraction form
    15,438.39/23,161.29 = 4,345.03/x
  3. Step 3: Cross multiply
    15,438.39x = 23,161.29 × 4,345.03
  4. Step 4: Simplify right side
    15,438.39x = 100,636,499.89
  5. Step 5: Solve for x
    x = 100,636,499.89/15,438.39
  6. Step 6: Final answer
    x = 6,518.59

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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.