Home / 28,312.62-42,467.64-7,536.12

Finding the Fourth Proportional to 28,312.62, 42,467.64 and 7,536.12

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Solution

The fourth proportional to 28,312.62, 42,467.64 and 7,536.12 is: 11,303.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.62 : 42,467.64 = 7,536.12 : x
  2. Step 2: Convert to fraction form
    28,312.62/42,467.64 = 7,536.12/x
  3. Step 3: Cross multiply
    28,312.62x = 42,467.64 × 7,536.12
  4. Step 4: Simplify right side
    28,312.62x = 320,041,231.16
  5. Step 5: Solve for x
    x = 320,041,231.16/28,312.62
  6. Step 6: Final answer
    x = 11,303.84

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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.