Home / 30,304.32-45,470.28-13,668.72

Finding the Fourth Proportional to 30,304.32, 45,470.28 and 13,668.72

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Solution

The fourth proportional to 30,304.32, 45,470.28 and 13,668.72 is: 20,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,304.32 : 45,470.28 = 13,668.72 : x
  2. Step 2: Convert to fraction form
    30,304.32/45,470.28 = 13,668.72/x
  3. Step 3: Cross multiply
    30,304.32x = 45,470.28 × 13,668.72
  4. Step 4: Simplify right side
    30,304.32x = 621,520,525.64
  5. Step 5: Solve for x
    x = 621,520,525.64/30,304.32
  6. Step 6: Final answer
    x = 20,509.30

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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.