Home / 28,890.28-43,299.98-16,420.75

Finding the Fourth Proportional to 28,890.28, 43,299.98 and 16,420.75

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Solution

The fourth proportional to 28,890.28, 43,299.98 and 16,420.75 is: 24,610.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.28 : 43,299.98 = 16,420.75 : x
  2. Step 2: Convert to fraction form
    28,890.28/43,299.98 = 16,420.75/x
  3. Step 3: Cross multiply
    28,890.28x = 43,299.98 × 16,420.75
  4. Step 4: Simplify right side
    28,890.28x = 711,018,064.48
  5. Step 5: Solve for x
    x = 711,018,064.48/28,890.28
  6. Step 6: Final answer
    x = 24,610.98

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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.