Home / 28,290.82-42,415.27-14,240.56

Finding the Fourth Proportional to 28,290.82, 42,415.27 and 14,240.56

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Solution

The fourth proportional to 28,290.82, 42,415.27 and 14,240.56 is: 21,350.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.82 : 42,415.27 = 14,240.56 : x
  2. Step 2: Convert to fraction form
    28,290.82/42,415.27 = 14,240.56/x
  3. Step 3: Cross multiply
    28,290.82x = 42,415.27 × 14,240.56
  4. Step 4: Simplify right side
    28,290.82x = 604,017,055.71
  5. Step 5: Solve for x
    x = 604,017,055.71/28,290.82
  6. Step 6: Final answer
    x = 21,350.29

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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.