Home / 30,019.20-45,007.20-16,875.60

Finding the Fourth Proportional to 30,019.20, 45,007.20 and 16,875.60

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Solution

The fourth proportional to 30,019.20, 45,007.20 and 16,875.60 is: 25,301.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,019.20 : 45,007.20 = 16,875.60 : x
  2. Step 2: Convert to fraction form
    30,019.20/45,007.20 = 16,875.60/x
  3. Step 3: Cross multiply
    30,019.20x = 45,007.20 × 16,875.60
  4. Step 4: Simplify right side
    30,019.20x = 759,523,504.32
  5. Step 5: Solve for x
    x = 759,523,504.32/30,019.20
  6. Step 6: Final answer
    x = 25,301.26

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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.