Home / 30,287.64-45,438.78-9,511.14

Finding the Fourth Proportional to 30,287.64, 45,438.78 and 9,511.14

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Solution

The fourth proportional to 30,287.64, 45,438.78 and 9,511.14 is: 14,269.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.64 : 45,438.78 = 9,511.14 : x
  2. Step 2: Convert to fraction form
    30,287.64/45,438.78 = 9,511.14/x
  3. Step 3: Cross multiply
    30,287.64x = 45,438.78 × 9,511.14
  4. Step 4: Simplify right side
    30,287.64x = 432,174,598.01
  5. Step 5: Solve for x
    x = 432,174,598.01/30,287.64
  6. Step 6: Final answer
    x = 14,269.01

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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.