Home / 30,159.09-45,253.62-13,530.87

Finding the Fourth Proportional to 30,159.09, 45,253.62 and 13,530.87

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Solution

The fourth proportional to 30,159.09, 45,253.62 and 13,530.87 is: 20,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,159.09 : 45,253.62 = 13,530.87 : x
  2. Step 2: Convert to fraction form
    30,159.09/45,253.62 = 13,530.87/x
  3. Step 3: Cross multiply
    30,159.09x = 45,253.62 × 13,530.87
  4. Step 4: Simplify right side
    30,159.09x = 612,320,849.25
  5. Step 5: Solve for x
    x = 612,320,849.25/30,159.09
  6. Step 6: Final answer
    x = 20,303.03

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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.