Home / 42,819.04-64,228.92-13,236.80

Finding the Fourth Proportional to 42,819.04, 64,228.92 and 13,236.80

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Solution

The fourth proportional to 42,819.04, 64,228.92 and 13,236.80 is: 19,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,819.04 : 64,228.92 = 13,236.80 : x
  2. Step 2: Convert to fraction form
    42,819.04/64,228.92 = 13,236.80/x
  3. Step 3: Cross multiply
    42,819.04x = 64,228.92 × 13,236.80
  4. Step 4: Simplify right side
    42,819.04x = 850,185,368.26
  5. Step 5: Solve for x
    x = 850,185,368.26/42,819.04
  6. Step 6: Final answer
    x = 19,855.31

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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.