Home / 30,385.64-45,563.46-9,320.64

Finding the Fourth Proportional to 30,385.64, 45,563.46 and 9,320.64

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Solution

The fourth proportional to 30,385.64, 45,563.46 and 9,320.64 is: 13,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,385.64 : 45,563.46 = 9,320.64 : x
  2. Step 2: Convert to fraction form
    30,385.64/45,563.46 = 9,320.64/x
  3. Step 3: Cross multiply
    30,385.64x = 45,563.46 × 9,320.64
  4. Step 4: Simplify right side
    30,385.64x = 424,680,607.81
  5. Step 5: Solve for x
    x = 424,680,607.81/30,385.64
  6. Step 6: Final answer
    x = 13,976.36

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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.