Home / 30,887.56-46,337.76-12,419.56

Finding the Fourth Proportional to 30,887.56, 46,337.76 and 12,419.56

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Solution

The fourth proportional to 30,887.56, 46,337.76 and 12,419.56 is: 18,631.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.56 : 46,337.76 = 12,419.56 : x
  2. Step 2: Convert to fraction form
    30,887.56/46,337.76 = 12,419.56/x
  3. Step 3: Cross multiply
    30,887.56x = 46,337.76 × 12,419.56
  4. Step 4: Simplify right side
    30,887.56x = 575,494,590.59
  5. Step 5: Solve for x
    x = 575,494,590.59/30,887.56
  6. Step 6: Final answer
    x = 18,631.92

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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.