Home / 28,008.98-42,021.62-8,288.06

Finding the Fourth Proportional to 28,008.98, 42,021.62 and 8,288.06

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Solution

The fourth proportional to 28,008.98, 42,021.62 and 8,288.06 is: 12,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.98 : 42,021.62 = 8,288.06 : x
  2. Step 2: Convert to fraction form
    28,008.98/42,021.62 = 8,288.06/x
  3. Step 3: Cross multiply
    28,008.98x = 42,021.62 × 8,288.06
  4. Step 4: Simplify right side
    28,008.98x = 348,277,518.47
  5. Step 5: Solve for x
    x = 348,277,518.47/28,008.98
  6. Step 6: Final answer
    x = 12,434.50

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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.