Home / 42,736.80-64,117.05-17,788.60

Finding the Fourth Proportional to 42,736.80, 64,117.05 and 17,788.60

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Solution

The fourth proportional to 42,736.80, 64,117.05 and 17,788.60 is: 26,687.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,736.80 : 64,117.05 = 17,788.60 : x
  2. Step 2: Convert to fraction form
    42,736.80/64,117.05 = 17,788.60/x
  3. Step 3: Cross multiply
    42,736.80x = 64,117.05 × 17,788.60
  4. Step 4: Simplify right side
    42,736.80x = 1,140,552,555.63
  5. Step 5: Solve for x
    x = 1,140,552,555.63/42,736.80
  6. Step 6: Final answer
    x = 26,687.83

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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.