Home / 42,662.20-64,017.60-16,385.80

Finding the Fourth Proportional to 42,662.20, 64,017.60 and 16,385.80

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Solution

The fourth proportional to 42,662.20, 64,017.60 and 16,385.80 is: 24,588.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,662.20 : 64,017.60 = 16,385.80 : x
  2. Step 2: Convert to fraction form
    42,662.20/64,017.60 = 16,385.80/x
  3. Step 3: Cross multiply
    42,662.20x = 64,017.60 × 16,385.80
  4. Step 4: Simplify right side
    42,662.20x = 1,048,979,590.08
  5. Step 5: Solve for x
    x = 1,048,979,590.08/42,662.20
  6. Step 6: Final answer
    x = 24,588.03

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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.