Home / 28,575.75-39,434.55-16,000.77

Finding the Fourth Proportional to 28,575.75, 39,434.55 and 16,000.77

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Solution

The fourth proportional to 28,575.75, 39,434.55 and 16,000.77 is: 22,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575.75 : 39,434.55 = 16,000.77 : x
  2. Step 2: Convert to fraction form
    28,575.75/39,434.55 = 16,000.77/x
  3. Step 3: Cross multiply
    28,575.75x = 39,434.55 × 16,000.77
  4. Step 4: Simplify right side
    28,575.75x = 630,983,164.60
  5. Step 5: Solve for x
    x = 630,983,164.60/28,575.75
  6. Step 6: Final answer
    x = 22,081.07

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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.