Home / 31,620.16-43,636.08-19,053.28

Finding the Fourth Proportional to 31,620.16, 43,636.08 and 19,053.28

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Solution

The fourth proportional to 31,620.16, 43,636.08 and 19,053.28 is: 26,293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,620.16 : 43,636.08 = 19,053.28 : x
  2. Step 2: Convert to fraction form
    31,620.16/43,636.08 = 19,053.28/x
  3. Step 3: Cross multiply
    31,620.16x = 43,636.08 × 19,053.28
  4. Step 4: Simplify right side
    31,620.16x = 831,410,450.34
  5. Step 5: Solve for x
    x = 831,410,450.34/31,620.16
  6. Step 6: Final answer
    x = 26,293.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.