Home / 28,666.72-39,565.68-16,090.72

Finding the Fourth Proportional to 28,666.72, 39,565.68 and 16,090.72

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Solution

The fourth proportional to 28,666.72, 39,565.68 and 16,090.72 is: 22,208.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.72 : 39,565.68 = 16,090.72 : x
  2. Step 2: Convert to fraction form
    28,666.72/39,565.68 = 16,090.72/x
  3. Step 3: Cross multiply
    28,666.72x = 39,565.68 × 16,090.72
  4. Step 4: Simplify right side
    28,666.72x = 636,640,278.49
  5. Step 5: Solve for x
    x = 636,640,278.49/28,666.72
  6. Step 6: Final answer
    x = 22,208.34

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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.