Home / 30,810.88-46,220.16-12,091.52

Finding the Fourth Proportional to 30,810.88, 46,220.16 and 12,091.52

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Solution

The fourth proportional to 30,810.88, 46,220.16 and 12,091.52 is: 18,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,810.88 : 46,220.16 = 12,091.52 : x
  2. Step 2: Convert to fraction form
    30,810.88/46,220.16 = 12,091.52/x
  3. Step 3: Cross multiply
    30,810.88x = 46,220.16 × 12,091.52
  4. Step 4: Simplify right side
    30,810.88x = 558,871,989.04
  5. Step 5: Solve for x
    x = 558,871,989.04/30,810.88
  6. Step 6: Final answer
    x = 18,138.79

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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.