Home / 30,655.60-45,974.76-13,144.48

Finding the Fourth Proportional to 30,655.60, 45,974.76 and 13,144.48

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Solution

The fourth proportional to 30,655.60, 45,974.76 and 13,144.48 is: 19,713.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.60 : 45,974.76 = 13,144.48 : x
  2. Step 2: Convert to fraction form
    30,655.60/45,974.76 = 13,144.48/x
  3. Step 3: Cross multiply
    30,655.60x = 45,974.76 × 13,144.48
  4. Step 4: Simplify right side
    30,655.60x = 604,314,313.32
  5. Step 5: Solve for x
    x = 604,314,313.32/30,655.60
  6. Step 6: Final answer
    x = 19,713.02

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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.