Home / 28,666.68-39,555.72-16,089

Finding the Fourth Proportional to 28,666.68, 39,555.72 and 16,089

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Solution

The fourth proportional to 28,666.68, 39,555.72 and 16,089 is: 22,200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.68 : 39,555.72 = 16,089 : x
  2. Step 2: Convert to fraction form
    28,666.68/39,555.72 = 16,089/x
  3. Step 3: Cross multiply
    28,666.68x = 39,555.72 × 16,089
  4. Step 4: Simplify right side
    28,666.68x = 636,411,979.08
  5. Step 5: Solve for x
    x = 636,411,979.08/28,666.68
  6. Step 6: Final answer
    x = 22,200.41

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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.