Home / 19,530.80-29,296.20-16,420.40

Finding the Fourth Proportional to 19,530.80, 29,296.20 and 16,420.40

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Solution

The fourth proportional to 19,530.80, 29,296.20 and 16,420.40 is: 24,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.80 : 29,296.20 = 16,420.40 : x
  2. Step 2: Convert to fraction form
    19,530.80/29,296.20 = 16,420.40/x
  3. Step 3: Cross multiply
    19,530.80x = 29,296.20 × 16,420.40
  4. Step 4: Simplify right side
    19,530.80x = 481,055,322.48
  5. Step 5: Solve for x
    x = 481,055,322.48/19,530.80
  6. Step 6: Final answer
    x = 24,630.60

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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.