Home / 30,475.04-45,678-12,933.92

Finding the Fourth Proportional to 30,475.04, 45,678 and 12,933.92

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Solution

The fourth proportional to 30,475.04, 45,678 and 12,933.92 is: 19,386.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,475.04 : 45,678 = 12,933.92 : x
  2. Step 2: Convert to fraction form
    30,475.04/45,678 = 12,933.92/x
  3. Step 3: Cross multiply
    30,475.04x = 45,678 × 12,933.92
  4. Step 4: Simplify right side
    30,475.04x = 590,795,597.76
  5. Step 5: Solve for x
    x = 590,795,597.76/30,475.04
  6. Step 6: Final answer
    x = 19,386.21

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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.