Home / 30,270.43-45,403.80-14,486.68

Finding the Fourth Proportional to 30,270.43, 45,403.80 and 14,486.68

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Solution

The fourth proportional to 30,270.43, 45,403.80 and 14,486.68 is: 21,729.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,270.43 : 45,403.80 = 14,486.68 : x
  2. Step 2: Convert to fraction form
    30,270.43/45,403.80 = 14,486.68/x
  3. Step 3: Cross multiply
    30,270.43x = 45,403.80 × 14,486.68
  4. Step 4: Simplify right side
    30,270.43x = 657,750,321.38
  5. Step 5: Solve for x
    x = 657,750,321.38/30,270.43
  6. Step 6: Final answer
    x = 21,729.14

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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.