Home / 30,643.04-45,964.68-20,252.48

Finding the Fourth Proportional to 30,643.04, 45,964.68 and 20,252.48

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Solution

The fourth proportional to 30,643.04, 45,964.68 and 20,252.48 is: 30,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,643.04 : 45,964.68 = 20,252.48 : x
  2. Step 2: Convert to fraction form
    30,643.04/45,964.68 = 20,252.48/x
  3. Step 3: Cross multiply
    30,643.04x = 45,964.68 × 20,252.48
  4. Step 4: Simplify right side
    30,643.04x = 930,898,762.41
  5. Step 5: Solve for x
    x = 930,898,762.41/30,643.04
  6. Step 6: Final answer
    x = 30,378.80

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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.