Home / 28,412.26-39,178.15-19,343.50

Finding the Fourth Proportional to 28,412.26, 39,178.15 and 19,343.50

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Solution

The fourth proportional to 28,412.26, 39,178.15 and 19,343.50 is: 26,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.26 : 39,178.15 = 19,343.50 : x
  2. Step 2: Convert to fraction form
    28,412.26/39,178.15 = 19,343.50/x
  3. Step 3: Cross multiply
    28,412.26x = 39,178.15 × 19,343.50
  4. Step 4: Simplify right side
    28,412.26x = 757,842,544.53
  5. Step 5: Solve for x
    x = 757,842,544.53/28,412.26
  6. Step 6: Final answer
    x = 26,673.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.