Home / 28,564.84-39,415.56-16,618.96

Finding the Fourth Proportional to 28,564.84, 39,415.56 and 16,618.96

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Solution

The fourth proportional to 28,564.84, 39,415.56 and 16,618.96 is: 22,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.84 : 39,415.56 = 16,618.96 : x
  2. Step 2: Convert to fraction form
    28,564.84/39,415.56 = 16,618.96/x
  3. Step 3: Cross multiply
    28,564.84x = 39,415.56 × 16,618.96
  4. Step 4: Simplify right side
    28,564.84x = 655,045,615.02
  5. Step 5: Solve for x
    x = 655,045,615.02/28,564.84
  6. Step 6: Final answer
    x = 22,931.88

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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.