Home / 30,219.60-45,283.20-20,322.24

Finding the Fourth Proportional to 30,219.60, 45,283.20 and 20,322.24

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Solution

The fourth proportional to 30,219.60, 45,283.20 and 20,322.24 is: 30,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.60 : 45,283.20 = 20,322.24 : x
  2. Step 2: Convert to fraction form
    30,219.60/45,283.20 = 20,322.24/x
  3. Step 3: Cross multiply
    30,219.60x = 45,283.20 × 20,322.24
  4. Step 4: Simplify right side
    30,219.60x = 920,256,058.37
  5. Step 5: Solve for x
    x = 920,256,058.37/30,219.60
  6. Step 6: Final answer
    x = 30,452.29

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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.