Home / 31,554.61-43,526.04-20,220.28

Finding the Fourth Proportional to 31,554.61, 43,526.04 and 20,220.28

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Solution

The fourth proportional to 31,554.61, 43,526.04 and 20,220.28 is: 27,891.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,554.61 : 43,526.04 = 20,220.28 : x
  2. Step 2: Convert to fraction form
    31,554.61/43,526.04 = 20,220.28/x
  3. Step 3: Cross multiply
    31,554.61x = 43,526.04 × 20,220.28
  4. Step 4: Simplify right side
    31,554.61x = 880,108,716.09
  5. Step 5: Solve for x
    x = 880,108,716.09/31,554.61
  6. Step 6: Final answer
    x = 27,891.60

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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.