Home / 28,386.28-39,173.09-16,456.53

Finding the Fourth Proportional to 28,386.28, 39,173.09 and 16,456.53

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Solution

The fourth proportional to 28,386.28, 39,173.09 and 16,456.53 is: 22,710.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.28 : 39,173.09 = 16,456.53 : x
  2. Step 2: Convert to fraction form
    28,386.28/39,173.09 = 16,456.53/x
  3. Step 3: Cross multiply
    28,386.28x = 39,173.09 × 16,456.53
  4. Step 4: Simplify right side
    28,386.28x = 644,653,048.50
  5. Step 5: Solve for x
    x = 644,653,048.50/28,386.28
  6. Step 6: Final answer
    x = 22,710.02

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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.