Home / 28,509.12-39,336.39-16,566.30

Finding the Fourth Proportional to 28,509.12, 39,336.39 and 16,566.30

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Solution

The fourth proportional to 28,509.12, 39,336.39 and 16,566.30 is: 22,857.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.12 : 39,336.39 = 16,566.30 : x
  2. Step 2: Convert to fraction form
    28,509.12/39,336.39 = 16,566.30/x
  3. Step 3: Cross multiply
    28,509.12x = 39,336.39 × 16,566.30
  4. Step 4: Simplify right side
    28,509.12x = 651,658,437.66
  5. Step 5: Solve for x
    x = 651,658,437.66/28,509.12
  6. Step 6: Final answer
    x = 22,857.89

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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.