Home / 30,140.48-45,129.72-16,973.12

Finding the Fourth Proportional to 30,140.48, 45,129.72 and 16,973.12

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Solution

The fourth proportional to 30,140.48, 45,129.72 and 16,973.12 is: 25,414.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.48 : 45,129.72 = 16,973.12 : x
  2. Step 2: Convert to fraction form
    30,140.48/45,129.72 = 16,973.12/x
  3. Step 3: Cross multiply
    30,140.48x = 45,129.72 × 16,973.12
  4. Step 4: Simplify right side
    30,140.48x = 765,992,153.13
  5. Step 5: Solve for x
    x = 765,992,153.13/30,140.48
  6. Step 6: Final answer
    x = 25,414.07

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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.