Home / 28,353.88-39,126.05-16,417.97

Finding the Fourth Proportional to 28,353.88, 39,126.05 and 16,417.97

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Solution

The fourth proportional to 28,353.88, 39,126.05 and 16,417.97 is: 22,655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.88 : 39,126.05 = 16,417.97 : x
  2. Step 2: Convert to fraction form
    28,353.88/39,126.05 = 16,417.97/x
  3. Step 3: Cross multiply
    28,353.88x = 39,126.05 × 16,417.97
  4. Step 4: Simplify right side
    28,353.88x = 642,370,558.12
  5. Step 5: Solve for x
    x = 642,370,558.12/28,353.88
  6. Step 6: Final answer
    x = 22,655.47

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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.