Home / 28,513.62-39,342.31-16,415.46

Finding the Fourth Proportional to 28,513.62, 39,342.31 and 16,415.46

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Solution

The fourth proportional to 28,513.62, 39,342.31 and 16,415.46 is: 22,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.62 : 39,342.31 = 16,415.46 : x
  2. Step 2: Convert to fraction form
    28,513.62/39,342.31 = 16,415.46/x
  3. Step 3: Cross multiply
    28,513.62x = 39,342.31 × 16,415.46
  4. Step 4: Simplify right side
    28,513.62x = 645,822,075.07
  5. Step 5: Solve for x
    x = 645,822,075.07/28,513.62
  6. Step 6: Final answer
    x = 22,649.60

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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.