Home / 28,799.74-39,730.77-16,857.81

Finding the Fourth Proportional to 28,799.74, 39,730.77 and 16,857.81

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Solution

The fourth proportional to 28,799.74, 39,730.77 and 16,857.81 is: 23,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,799.74 : 39,730.77 = 16,857.81 : x
  2. Step 2: Convert to fraction form
    28,799.74/39,730.77 = 16,857.81/x
  3. Step 3: Cross multiply
    28,799.74x = 39,730.77 × 16,857.81
  4. Step 4: Simplify right side
    28,799.74x = 669,773,771.81
  5. Step 5: Solve for x
    x = 669,773,771.81/28,799.74
  6. Step 6: Final answer
    x = 23,256.24

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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.