Home / 28,087.58-38,763.14-17,478.81

Finding the Fourth Proportional to 28,087.58, 38,763.14 and 17,478.81

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Solution

The fourth proportional to 28,087.58, 38,763.14 and 17,478.81 is: 24,122.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.58 : 38,763.14 = 17,478.81 : x
  2. Step 2: Convert to fraction form
    28,087.58/38,763.14 = 17,478.81/x
  3. Step 3: Cross multiply
    28,087.58x = 38,763.14 × 17,478.81
  4. Step 4: Simplify right side
    28,087.58x = 677,533,471.67
  5. Step 5: Solve for x
    x = 677,533,471.67/28,087.58
  6. Step 6: Final answer
    x = 24,122.17

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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.