Home / 30,405.64-45,534.36-17,218.08

Finding the Fourth Proportional to 30,405.64, 45,534.36 and 17,218.08

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Solution

The fourth proportional to 30,405.64, 45,534.36 and 17,218.08 is: 25,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.64 : 45,534.36 = 17,218.08 : x
  2. Step 2: Convert to fraction form
    30,405.64/45,534.36 = 17,218.08/x
  3. Step 3: Cross multiply
    30,405.64x = 45,534.36 × 17,218.08
  4. Step 4: Simplify right side
    30,405.64x = 784,014,253.23
  5. Step 5: Solve for x
    x = 784,014,253.23/30,405.64
  6. Step 6: Final answer
    x = 25,785.16

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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.