Home / 20,381.43-30,564.69-7,051.06

Finding the Fourth Proportional to 20,381.43, 30,564.69 and 7,051.06

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Solution

The fourth proportional to 20,381.43, 30,564.69 and 7,051.06 is: 10,574.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.43 : 30,564.69 = 7,051.06 : x
  2. Step 2: Convert to fraction form
    20,381.43/30,564.69 = 7,051.06/x
  3. Step 3: Cross multiply
    20,381.43x = 30,564.69 × 7,051.06
  4. Step 4: Simplify right side
    20,381.43x = 215,513,463.07
  5. Step 5: Solve for x
    x = 215,513,463.07/20,381.43
  6. Step 6: Final answer
    x = 10,574.01

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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.