Home / 28,748.45-39,666.87-16,809.47

Finding the Fourth Proportional to 28,748.45, 39,666.87 and 16,809.47

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Solution

The fourth proportional to 28,748.45, 39,666.87 and 16,809.47 is: 23,193.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.45 : 39,666.87 = 16,809.47 : x
  2. Step 2: Convert to fraction form
    28,748.45/39,666.87 = 16,809.47/x
  3. Step 3: Cross multiply
    28,748.45x = 39,666.87 × 16,809.47
  4. Step 4: Simplify right side
    28,748.45x = 666,778,862.92
  5. Step 5: Solve for x
    x = 666,778,862.92/28,748.45
  6. Step 6: Final answer
    x = 23,193.56

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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.