Home / 30,025.78-45,039.58-10,304.06

Finding the Fourth Proportional to 30,025.78, 45,039.58 and 10,304.06

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Solution

The fourth proportional to 30,025.78, 45,039.58 and 10,304.06 is: 15,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,025.78 : 45,039.58 = 10,304.06 : x
  2. Step 2: Convert to fraction form
    30,025.78/45,039.58 = 10,304.06/x
  3. Step 3: Cross multiply
    30,025.78x = 45,039.58 × 10,304.06
  4. Step 4: Simplify right side
    30,025.78x = 464,090,534.69
  5. Step 5: Solve for x
    x = 464,090,534.69/30,025.78
  6. Step 6: Final answer
    x = 15,456.40

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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.