Home / 42,709.28-64,074.65-19,329.44

Finding the Fourth Proportional to 42,709.28, 64,074.65 and 19,329.44

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Solution

The fourth proportional to 42,709.28, 64,074.65 and 19,329.44 is: 28,999.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,709.28 : 64,074.65 = 19,329.44 : x
  2. Step 2: Convert to fraction form
    42,709.28/64,074.65 = 19,329.44/x
  3. Step 3: Cross multiply
    42,709.28x = 64,074.65 × 19,329.44
  4. Step 4: Simplify right side
    42,709.28x = 1,238,526,685.68
  5. Step 5: Solve for x
    x = 1,238,526,685.68/42,709.28
  6. Step 6: Final answer
    x = 28,999.01

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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.