Home / 28,068.57-42,080.78-14,021.36

Finding the Fourth Proportional to 28,068.57, 42,080.78 and 14,021.36

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Solution

The fourth proportional to 28,068.57, 42,080.78 and 14,021.36 is: 21,021.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.57 : 42,080.78 = 14,021.36 : x
  2. Step 2: Convert to fraction form
    28,068.57/42,080.78 = 14,021.36/x
  3. Step 3: Cross multiply
    28,068.57x = 42,080.78 × 14,021.36
  4. Step 4: Simplify right side
    28,068.57x = 590,029,484.95
  5. Step 5: Solve for x
    x = 590,029,484.95/28,068.57
  6. Step 6: Final answer
    x = 21,021.00

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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.