Home / 20,865.08-31,297.33-5,070.22

Finding the Fourth Proportional to 20,865.08, 31,297.33 and 5,070.22

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Solution

The fourth proportional to 20,865.08, 31,297.33 and 5,070.22 is: 7,605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,865.08 : 31,297.33 = 5,070.22 : x
  2. Step 2: Convert to fraction form
    20,865.08/31,297.33 = 5,070.22/x
  3. Step 3: Cross multiply
    20,865.08x = 31,297.33 × 5,070.22
  4. Step 4: Simplify right side
    20,865.08x = 158,684,348.51
  5. Step 5: Solve for x
    x = 158,684,348.51/20,865.08
  6. Step 6: Final answer
    x = 7,605.26

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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.