Home / 30,485.64-45,716.97-10,489.48

Finding the Fourth Proportional to 30,485.64, 45,716.97 and 10,489.48

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Solution

The fourth proportional to 30,485.64, 45,716.97 and 10,489.48 is: 15,730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,485.64 : 45,716.97 = 10,489.48 : x
  2. Step 2: Convert to fraction form
    30,485.64/45,716.97 = 10,489.48/x
  3. Step 3: Cross multiply
    30,485.64x = 45,716.97 × 10,489.48
  4. Step 4: Simplify right side
    30,485.64x = 479,547,242.48
  5. Step 5: Solve for x
    x = 479,547,242.48/30,485.64
  6. Step 6: Final answer
    x = 15,730.27

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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.