Home / 30,114.72-45,153.80-13,471.64

Finding the Fourth Proportional to 30,114.72, 45,153.80 and 13,471.64

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Solution

The fourth proportional to 30,114.72, 45,153.80 and 13,471.64 is: 20,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,114.72 : 45,153.80 = 13,471.64 : x
  2. Step 2: Convert to fraction form
    30,114.72/45,153.80 = 13,471.64/x
  3. Step 3: Cross multiply
    30,114.72x = 45,153.80 × 13,471.64
  4. Step 4: Simplify right side
    30,114.72x = 608,295,738.23
  5. Step 5: Solve for x
    x = 608,295,738.23/30,114.72
  6. Step 6: Final answer
    x = 20,199.28

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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.