Home / 28,063.90-42,095.79-11,420.22

Finding the Fourth Proportional to 28,063.90, 42,095.79 and 11,420.22

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Solution

The fourth proportional to 28,063.90, 42,095.79 and 11,420.22 is: 17,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.90 : 42,095.79 = 11,420.22 : x
  2. Step 2: Convert to fraction form
    28,063.90/42,095.79 = 11,420.22/x
  3. Step 3: Cross multiply
    28,063.90x = 42,095.79 × 11,420.22
  4. Step 4: Simplify right side
    28,063.90x = 480,743,288.11
  5. Step 5: Solve for x
    x = 480,743,288.11/28,063.90
  6. Step 6: Final answer
    x = 17,130.31

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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.