Home / 28,008.61-41,943.75-20,875.75

Finding the Fourth Proportional to 28,008.61, 41,943.75 and 20,875.75

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Solution

The fourth proportional to 28,008.61, 41,943.75 and 20,875.75 is: 31,262.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.61 : 41,943.75 = 20,875.75 : x
  2. Step 2: Convert to fraction form
    28,008.61/41,943.75 = 20,875.75/x
  3. Step 3: Cross multiply
    28,008.61x = 41,943.75 × 20,875.75
  4. Step 4: Simplify right side
    28,008.61x = 875,607,239.06
  5. Step 5: Solve for x
    x = 875,607,239.06/28,008.61
  6. Step 6: Final answer
    x = 31,262.07

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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.