Home / 28,605.12-39,480.08-16,503.48

Finding the Fourth Proportional to 28,605.12, 39,480.08 and 16,503.48

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Solution

The fourth proportional to 28,605.12, 39,480.08 and 16,503.48 is: 22,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605.12 : 39,480.08 = 16,503.48 : x
  2. Step 2: Convert to fraction form
    28,605.12/39,480.08 = 16,503.48/x
  3. Step 3: Cross multiply
    28,605.12x = 39,480.08 × 16,503.48
  4. Step 4: Simplify right side
    28,605.12x = 651,558,628.16
  5. Step 5: Solve for x
    x = 651,558,628.16/28,605.12
  6. Step 6: Final answer
    x = 22,777.69

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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.