Home / 28,390.29-39,177.16-16,457.37

Finding the Fourth Proportional to 28,390.29, 39,177.16 and 16,457.37

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Solution

The fourth proportional to 28,390.29, 39,177.16 and 16,457.37 is: 22,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.29 : 39,177.16 = 16,457.37 : x
  2. Step 2: Convert to fraction form
    28,390.29/39,177.16 = 16,457.37/x
  3. Step 3: Cross multiply
    28,390.29x = 39,177.16 × 16,457.37
  4. Step 4: Simplify right side
    28,390.29x = 644,753,017.67
  5. Step 5: Solve for x
    x = 644,753,017.67/28,390.29
  6. Step 6: Final answer
    x = 22,710.34

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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.