Home / 28,748.07-39,666.35-16,809.09

Finding the Fourth Proportional to 28,748.07, 39,666.35 and 16,809.09

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Solution

The fourth proportional to 28,748.07, 39,666.35 and 16,809.09 is: 23,193.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.07 : 39,666.35 = 16,809.09 : x
  2. Step 2: Convert to fraction form
    28,748.07/39,666.35 = 16,809.09/x
  3. Step 3: Cross multiply
    28,748.07x = 39,666.35 × 16,809.09
  4. Step 4: Simplify right side
    28,748.07x = 666,755,163.08
  5. Step 5: Solve for x
    x = 666,755,163.08/28,748.07
  6. Step 6: Final answer
    x = 23,193.04

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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.