Home / 28,530.48-39,365.88-15,954.80

Finding the Fourth Proportional to 28,530.48, 39,365.88 and 15,954.80

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Solution

The fourth proportional to 28,530.48, 39,365.88 and 15,954.80 is: 22,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.48 : 39,365.88 = 15,954.80 : x
  2. Step 2: Convert to fraction form
    28,530.48/39,365.88 = 15,954.80/x
  3. Step 3: Cross multiply
    28,530.48x = 39,365.88 × 15,954.80
  4. Step 4: Simplify right side
    28,530.48x = 628,074,742.22
  5. Step 5: Solve for x
    x = 628,074,742.22/28,530.48
  6. Step 6: Final answer
    x = 22,014.17

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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.