Home / 28,877.20-43,315.80-16,435.60

Finding the Fourth Proportional to 28,877.20, 43,315.80 and 16,435.60

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Solution

The fourth proportional to 28,877.20, 43,315.80 and 16,435.60 is: 24,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.20 : 43,315.80 = 16,435.60 : x
  2. Step 2: Convert to fraction form
    28,877.20/43,315.80 = 16,435.60/x
  3. Step 3: Cross multiply
    28,877.20x = 43,315.80 × 16,435.60
  4. Step 4: Simplify right side
    28,877.20x = 711,921,162.48
  5. Step 5: Solve for x
    x = 711,921,162.48/28,877.20
  6. Step 6: Final answer
    x = 24,653.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.