Home / 30,259.36-45,431.57-15,478.89

Finding the Fourth Proportional to 30,259.36, 45,431.57 and 15,478.89

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Solution

The fourth proportional to 30,259.36, 45,431.57 and 15,478.89 is: 23,240.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,259.36 : 45,431.57 = 15,478.89 : x
  2. Step 2: Convert to fraction form
    30,259.36/45,431.57 = 15,478.89/x
  3. Step 3: Cross multiply
    30,259.36x = 45,431.57 × 15,478.89
  4. Step 4: Simplify right side
    30,259.36x = 703,230,274.56
  5. Step 5: Solve for x
    x = 703,230,274.56/30,259.36
  6. Step 6: Final answer
    x = 23,240.09

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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.