Home / 30,204.52-45,313.06-9,145.74

Finding the Fourth Proportional to 30,204.52, 45,313.06 and 9,145.74

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Solution

The fourth proportional to 30,204.52, 45,313.06 and 9,145.74 is: 13,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.52 : 45,313.06 = 9,145.74 : x
  2. Step 2: Convert to fraction form
    30,204.52/45,313.06 = 9,145.74/x
  3. Step 3: Cross multiply
    30,204.52x = 45,313.06 × 9,145.74
  4. Step 4: Simplify right side
    30,204.52x = 414,421,465.36
  5. Step 5: Solve for x
    x = 414,421,465.36/30,204.52
  6. Step 6: Final answer
    x = 13,720.51

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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.