Home / 28,830.09-39,785.45-16,254.75

Finding the Fourth Proportional to 28,830.09, 39,785.45 and 16,254.75

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Solution

The fourth proportional to 28,830.09, 39,785.45 and 16,254.75 is: 22,431.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.09 : 39,785.45 = 16,254.75 : x
  2. Step 2: Convert to fraction form
    28,830.09/39,785.45 = 16,254.75/x
  3. Step 3: Cross multiply
    28,830.09x = 39,785.45 × 16,254.75
  4. Step 4: Simplify right side
    28,830.09x = 646,702,543.39
  5. Step 5: Solve for x
    x = 646,702,543.39/28,830.09
  6. Step 6: Final answer
    x = 22,431.51

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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.