Home / 28,410.06-39,206.34-15,834.78

Finding the Fourth Proportional to 28,410.06, 39,206.34 and 15,834.78

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Solution

The fourth proportional to 28,410.06, 39,206.34 and 15,834.78 is: 21,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.06 : 39,206.34 = 15,834.78 : x
  2. Step 2: Convert to fraction form
    28,410.06/39,206.34 = 15,834.78/x
  3. Step 3: Cross multiply
    28,410.06x = 39,206.34 × 15,834.78
  4. Step 4: Simplify right side
    28,410.06x = 620,823,768.51
  5. Step 5: Solve for x
    x = 620,823,768.51/28,410.06
  6. Step 6: Final answer
    x = 21,852.25

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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.