Home / 30,558.96-45,839.31-13,910.40

Finding the Fourth Proportional to 30,558.96, 45,839.31 and 13,910.40

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Solution

The fourth proportional to 30,558.96, 45,839.31 and 13,910.40 is: 20,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.96 : 45,839.31 = 13,910.40 : x
  2. Step 2: Convert to fraction form
    30,558.96/45,839.31 = 13,910.40/x
  3. Step 3: Cross multiply
    30,558.96x = 45,839.31 × 13,910.40
  4. Step 4: Simplify right side
    30,558.96x = 637,643,137.82
  5. Step 5: Solve for x
    x = 637,643,137.82/30,558.96
  6. Step 6: Final answer
    x = 20,866.00

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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.