Home / 28,588.29-39,455.76-16,655.37

Finding the Fourth Proportional to 28,588.29, 39,455.76 and 16,655.37

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Solution

The fourth proportional to 28,588.29, 39,455.76 and 16,655.37 is: 22,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.29 : 39,455.76 = 16,655.37 : x
  2. Step 2: Convert to fraction form
    28,588.29/39,455.76 = 16,655.37/x
  3. Step 3: Cross multiply
    28,588.29x = 39,455.76 × 16,655.37
  4. Step 4: Simplify right side
    28,588.29x = 657,150,281.43
  5. Step 5: Solve for x
    x = 657,150,281.43/28,588.29
  6. Step 6: Final answer
    x = 22,986.69

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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.