Home / 30,539.64-45,809.57-10,818.78

Finding the Fourth Proportional to 30,539.64, 45,809.57 and 10,818.78

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Solution

The fourth proportional to 30,539.64, 45,809.57 and 10,818.78 is: 16,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,539.64 : 45,809.57 = 10,818.78 : x
  2. Step 2: Convert to fraction form
    30,539.64/45,809.57 = 10,818.78/x
  3. Step 3: Cross multiply
    30,539.64x = 45,809.57 × 10,818.78
  4. Step 4: Simplify right side
    30,539.64x = 495,603,659.72
  5. Step 5: Solve for x
    x = 495,603,659.72/30,539.64
  6. Step 6: Final answer
    x = 16,228.21

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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.