Home / 30,359.40-45,539.10-18,549.60

Finding the Fourth Proportional to 30,359.40, 45,539.10 and 18,549.60

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Solution

The fourth proportional to 30,359.40, 45,539.10 and 18,549.60 is: 27,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.40 : 45,539.10 = 18,549.60 : x
  2. Step 2: Convert to fraction form
    30,359.40/45,539.10 = 18,549.60/x
  3. Step 3: Cross multiply
    30,359.40x = 45,539.10 × 18,549.60
  4. Step 4: Simplify right side
    30,359.40x = 844,732,089.36
  5. Step 5: Solve for x
    x = 844,732,089.36/30,359.40
  6. Step 6: Final answer
    x = 27,824.40

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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.