Home / 30,012.42-45,025.47-10,289.77

Finding the Fourth Proportional to 30,012.42, 45,025.47 and 10,289.77

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Solution

The fourth proportional to 30,012.42, 45,025.47 and 10,289.77 is: 15,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,012.42 : 45,025.47 = 10,289.77 : x
  2. Step 2: Convert to fraction form
    30,012.42/45,025.47 = 10,289.77/x
  3. Step 3: Cross multiply
    30,012.42x = 45,025.47 × 10,289.77
  4. Step 4: Simplify right side
    30,012.42x = 463,301,617.88
  5. Step 5: Solve for x
    x = 463,301,617.88/30,012.42
  6. Step 6: Final answer
    x = 15,436.99

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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.