Home / 30,390.63-45,571.79-9,325.25

Finding the Fourth Proportional to 30,390.63, 45,571.79 and 9,325.25

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Solution

The fourth proportional to 30,390.63, 45,571.79 and 9,325.25 is: 13,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.63 : 45,571.79 = 9,325.25 : x
  2. Step 2: Convert to fraction form
    30,390.63/45,571.79 = 9,325.25/x
  3. Step 3: Cross multiply
    30,390.63x = 45,571.79 × 9,325.25
  4. Step 4: Simplify right side
    30,390.63x = 424,968,060.21
  5. Step 5: Solve for x
    x = 424,968,060.21/30,390.63
  6. Step 6: Final answer
    x = 13,983.52

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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.