Home / 30,185.76-45,281.12-9,409.26

Finding the Fourth Proportional to 30,185.76, 45,281.12 and 9,409.26

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Solution

The fourth proportional to 30,185.76, 45,281.12 and 9,409.26 is: 14,114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.76 : 45,281.12 = 9,409.26 : x
  2. Step 2: Convert to fraction form
    30,185.76/45,281.12 = 9,409.26/x
  3. Step 3: Cross multiply
    30,185.76x = 45,281.12 × 9,409.26
  4. Step 4: Simplify right side
    30,185.76x = 426,061,831.17
  5. Step 5: Solve for x
    x = 426,061,831.17/30,185.76
  6. Step 6: Final answer
    x = 14,114.66

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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.