Home / 28,386.65-39,173.58-16,456.91

Finding the Fourth Proportional to 28,386.65, 39,173.58 and 16,456.91

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Solution

The fourth proportional to 28,386.65, 39,173.58 and 16,456.91 is: 22,710.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.65 : 39,173.58 = 16,456.91 : x
  2. Step 2: Convert to fraction form
    28,386.65/39,173.58 = 16,456.91/x
  3. Step 3: Cross multiply
    28,386.65x = 39,173.58 × 16,456.91
  4. Step 4: Simplify right side
    28,386.65x = 644,676,178.37
  5. Step 5: Solve for x
    x = 644,676,178.37/28,386.65
  6. Step 6: Final answer
    x = 22,710.54

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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.