Home / 28,776.86-39,702.93-16,199.18

Finding the Fourth Proportional to 28,776.86, 39,702.93 and 16,199.18

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Solution

The fourth proportional to 28,776.86, 39,702.93 and 16,199.18 is: 22,349.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.86 : 39,702.93 = 16,199.18 : x
  2. Step 2: Convert to fraction form
    28,776.86/39,702.93 = 16,199.18/x
  3. Step 3: Cross multiply
    28,776.86x = 39,702.93 × 16,199.18
  4. Step 4: Simplify right side
    28,776.86x = 643,154,909.60
  5. Step 5: Solve for x
    x = 643,154,909.60/28,776.86
  6. Step 6: Final answer
    x = 22,349.73

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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.