Home / 30,140.64-45,214.32-10,416.96

Finding the Fourth Proportional to 30,140.64, 45,214.32 and 10,416.96

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Solution

The fourth proportional to 30,140.64, 45,214.32 and 10,416.96 is: 15,626.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.64 : 45,214.32 = 10,416.96 : x
  2. Step 2: Convert to fraction form
    30,140.64/45,214.32 = 10,416.96/x
  3. Step 3: Cross multiply
    30,140.64x = 45,214.32 × 10,416.96
  4. Step 4: Simplify right side
    30,140.64x = 470,995,762.87
  5. Step 5: Solve for x
    x = 470,995,762.87/30,140.64
  6. Step 6: Final answer
    x = 15,626.60

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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.