Home / 40,107.04-55,346.51-21,957.01

Finding the Fourth Proportional to 40,107.04, 55,346.51 and 21,957.01

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Solution

The fourth proportional to 40,107.04, 55,346.51 and 21,957.01 is: 30,300.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,107.04 : 55,346.51 = 21,957.01 : x
  2. Step 2: Convert to fraction form
    40,107.04/55,346.51 = 21,957.01/x
  3. Step 3: Cross multiply
    40,107.04x = 55,346.51 × 21,957.01
  4. Step 4: Simplify right side
    40,107.04x = 1,215,243,790.06
  5. Step 5: Solve for x
    x = 1,215,243,790.06/40,107.04
  6. Step 6: Final answer
    x = 30,300.01

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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.