Home / 30,013.08-45,004.50-10,015.53

Finding the Fourth Proportional to 30,013.08, 45,004.50 and 10,015.53

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Solution

The fourth proportional to 30,013.08, 45,004.50 and 10,015.53 is: 15,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,013.08 : 45,004.50 = 10,015.53 : x
  2. Step 2: Convert to fraction form
    30,013.08/45,004.50 = 10,015.53/x
  3. Step 3: Cross multiply
    30,013.08x = 45,004.50 × 10,015.53
  4. Step 4: Simplify right side
    30,013.08x = 450,743,919.89
  5. Step 5: Solve for x
    x = 450,743,919.89/30,013.08
  6. Step 6: Final answer
    x = 15,018.25

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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.