Home / 28,282.84-39,039.47-20,348.13

Finding the Fourth Proportional to 28,282.84, 39,039.47 and 20,348.13

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Solution

The fourth proportional to 28,282.84, 39,039.47 and 20,348.13 is: 28,087.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.84 : 39,039.47 = 20,348.13 : x
  2. Step 2: Convert to fraction form
    28,282.84/39,039.47 = 20,348.13/x
  3. Step 3: Cross multiply
    28,282.84x = 39,039.47 × 20,348.13
  4. Step 4: Simplify right side
    28,282.84x = 794,380,210.69
  5. Step 5: Solve for x
    x = 794,380,210.69/28,282.84
  6. Step 6: Final answer
    x = 28,087.00

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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.