Home / 30,145.32-45,203.40-10,416.96

Finding the Fourth Proportional to 30,145.32, 45,203.40 and 10,416.96

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Solution

The fourth proportional to 30,145.32, 45,203.40 and 10,416.96 is: 15,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,145.32 : 45,203.40 = 10,416.96 : x
  2. Step 2: Convert to fraction form
    30,145.32/45,203.40 = 10,416.96/x
  3. Step 3: Cross multiply
    30,145.32x = 45,203.40 × 10,416.96
  4. Step 4: Simplify right side
    30,145.32x = 470,882,009.66
  5. Step 5: Solve for x
    x = 470,882,009.66/30,145.32
  6. Step 6: Final answer
    x = 15,620.40

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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.