Home / 30,319.64-45,403.50-19,192.76

Finding the Fourth Proportional to 30,319.64, 45,403.50 and 19,192.76

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Solution

The fourth proportional to 30,319.64, 45,403.50 and 19,192.76 is: 28,741.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319.64 : 45,403.50 = 19,192.76 : x
  2. Step 2: Convert to fraction form
    30,319.64/45,403.50 = 19,192.76/x
  3. Step 3: Cross multiply
    30,319.64x = 45,403.50 × 19,192.76
  4. Step 4: Simplify right side
    30,319.64x = 871,418,478.66
  5. Step 5: Solve for x
    x = 871,418,478.66/30,319.64
  6. Step 6: Final answer
    x = 28,741.06

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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.