Home / 30,074.18-45,111.26-7,887.47

Finding the Fourth Proportional to 30,074.18, 45,111.26 and 7,887.47

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Solution

The fourth proportional to 30,074.18, 45,111.26 and 7,887.47 is: 11,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,074.18 : 45,111.26 = 7,887.47 : x
  2. Step 2: Convert to fraction form
    30,074.18/45,111.26 = 7,887.47/x
  3. Step 3: Cross multiply
    30,074.18x = 45,111.26 × 7,887.47
  4. Step 4: Simplify right side
    30,074.18x = 355,813,504.07
  5. Step 5: Solve for x
    x = 355,813,504.07/30,074.18
  6. Step 6: Final answer
    x = 11,831.20

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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.