Home / 28,386.84-39,173.82-16,457.10

Finding the Fourth Proportional to 28,386.84, 39,173.82 and 16,457.10

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Solution

The fourth proportional to 28,386.84, 39,173.82 and 16,457.10 is: 22,710.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.84 : 39,173.82 = 16,457.10 : x
  2. Step 2: Convert to fraction form
    28,386.84/39,173.82 = 16,457.10/x
  3. Step 3: Cross multiply
    28,386.84x = 39,173.82 × 16,457.10
  4. Step 4: Simplify right side
    28,386.84x = 644,687,473.12
  5. Step 5: Solve for x
    x = 644,687,473.12/28,386.84
  6. Step 6: Final answer
    x = 22,710.79

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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.