Home / 28,089.30-42,103.98-14,021.64

Finding the Fourth Proportional to 28,089.30, 42,103.98 and 14,021.64

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Solution

The fourth proportional to 28,089.30, 42,103.98 and 14,021.64 is: 21,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.30 : 42,103.98 = 14,021.64 : x
  2. Step 2: Convert to fraction form
    28,089.30/42,103.98 = 14,021.64/x
  3. Step 3: Cross multiply
    28,089.30x = 42,103.98 × 14,021.64
  4. Step 4: Simplify right side
    28,089.30x = 590,366,850.13
  5. Step 5: Solve for x
    x = 590,366,850.13/28,089.30
  6. Step 6: Final answer
    x = 21,017.50

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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.