Home / 28,214.49-42,322.59-12,411.33

Finding the Fourth Proportional to 28,214.49, 42,322.59 and 12,411.33

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Solution

The fourth proportional to 28,214.49, 42,322.59 and 12,411.33 is: 18,617.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,214.49 : 42,322.59 = 12,411.33 : x
  2. Step 2: Convert to fraction form
    28,214.49/42,322.59 = 12,411.33/x
  3. Step 3: Cross multiply
    28,214.49x = 42,322.59 × 12,411.33
  4. Step 4: Simplify right side
    28,214.49x = 525,279,630.94
  5. Step 5: Solve for x
    x = 525,279,630.94/28,214.49
  6. Step 6: Final answer
    x = 18,617.37

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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.