Home / 30,406.64-45,612.36-10,689.62

Finding the Fourth Proportional to 30,406.64, 45,612.36 and 10,689.62

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Solution

The fourth proportional to 30,406.64, 45,612.36 and 10,689.62 is: 16,035.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.64 : 45,612.36 = 10,689.62 : x
  2. Step 2: Convert to fraction form
    30,406.64/45,612.36 = 10,689.62/x
  3. Step 3: Cross multiply
    30,406.64x = 45,612.36 × 10,689.62
  4. Step 4: Simplify right side
    30,406.64x = 487,578,567.64
  5. Step 5: Solve for x
    x = 487,578,567.64/30,406.64
  6. Step 6: Final answer
    x = 16,035.27

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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.