Home / 30,214.99-45,327.09-15,415.84

Finding the Fourth Proportional to 30,214.99, 45,327.09 and 15,415.84

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Solution

The fourth proportional to 30,214.99, 45,327.09 and 15,415.84 is: 23,126.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,214.99 : 45,327.09 = 15,415.84 : x
  2. Step 2: Convert to fraction form
    30,214.99/45,327.09 = 15,415.84/x
  3. Step 3: Cross multiply
    30,214.99x = 45,327.09 × 15,415.84
  4. Step 4: Simplify right side
    30,214.99x = 698,754,940.47
  5. Step 5: Solve for x
    x = 698,754,940.47/30,214.99
  6. Step 6: Final answer
    x = 23,126.11

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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.