Home / 42,829.74-64,259.73-19,135.08

Finding the Fourth Proportional to 42,829.74, 64,259.73 and 19,135.08

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Solution

The fourth proportional to 42,829.74, 64,259.73 and 19,135.08 is: 28,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,829.74 : 64,259.73 = 19,135.08 : x
  2. Step 2: Convert to fraction form
    42,829.74/64,259.73 = 19,135.08/x
  3. Step 3: Cross multiply
    42,829.74x = 64,259.73 × 19,135.08
  4. Step 4: Simplify right side
    42,829.74x = 1,229,615,074.33
  5. Step 5: Solve for x
    x = 1,229,615,074.33/42,829.74
  6. Step 6: Final answer
    x = 28,709.38

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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.