Home / 21,242.34-31,860.36-7,202.16

Finding the Fourth Proportional to 21,242.34, 31,860.36 and 7,202.16

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Solution

The fourth proportional to 21,242.34, 31,860.36 and 7,202.16 is: 10,802.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,242.34 : 31,860.36 = 7,202.16 : x
  2. Step 2: Convert to fraction form
    21,242.34/31,860.36 = 7,202.16/x
  3. Step 3: Cross multiply
    21,242.34x = 31,860.36 × 7,202.16
  4. Step 4: Simplify right side
    21,242.34x = 229,463,410.38
  5. Step 5: Solve for x
    x = 229,463,410.38/21,242.34
  6. Step 6: Final answer
    x = 10,802.17

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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.