Home / 30,887.55-46,334.03-12,871.80

Finding the Fourth Proportional to 30,887.55, 46,334.03 and 12,871.80

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Solution

The fourth proportional to 30,887.55, 46,334.03 and 12,871.80 is: 19,308.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.55 : 46,334.03 = 12,871.80 : x
  2. Step 2: Convert to fraction form
    30,887.55/46,334.03 = 12,871.80/x
  3. Step 3: Cross multiply
    30,887.55x = 46,334.03 × 12,871.80
  4. Step 4: Simplify right side
    30,887.55x = 596,402,303.00
  5. Step 5: Solve for x
    x = 596,402,303.00/30,887.55
  6. Step 6: Final answer
    x = 19,308.83

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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.