Home / 30,330.68-45,528.42-17,208.68

Finding the Fourth Proportional to 30,330.68, 45,528.42 and 17,208.68

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Solution

The fourth proportional to 30,330.68, 45,528.42 and 17,208.68 is: 25,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,330.68 : 45,528.42 = 17,208.68 : x
  2. Step 2: Convert to fraction form
    30,330.68/45,528.42 = 17,208.68/x
  3. Step 3: Cross multiply
    30,330.68x = 45,528.42 × 17,208.68
  4. Step 4: Simplify right side
    30,330.68x = 783,484,010.69
  5. Step 5: Solve for x
    x = 783,484,010.69/30,330.68
  6. Step 6: Final answer
    x = 25,831.40

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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.