Home / 21,239.04-31,859.37-10,838.64

Finding the Fourth Proportional to 21,239.04, 31,859.37 and 10,838.64

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Solution

The fourth proportional to 21,239.04, 31,859.37 and 10,838.64 is: 16,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,239.04 : 31,859.37 = 10,838.64 : x
  2. Step 2: Convert to fraction form
    21,239.04/31,859.37 = 10,838.64/x
  3. Step 3: Cross multiply
    21,239.04x = 31,859.37 × 10,838.64
  4. Step 4: Simplify right side
    21,239.04x = 345,312,242.06
  5. Step 5: Solve for x
    x = 345,312,242.06/21,239.04
  6. Step 6: Final answer
    x = 16,258.37

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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.