Home / 28,381.49-39,166.45-16,451.75

Finding the Fourth Proportional to 28,381.49, 39,166.45 and 16,451.75

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Solution

The fourth proportional to 28,381.49, 39,166.45 and 16,451.75 is: 22,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381.49 : 39,166.45 = 16,451.75 : x
  2. Step 2: Convert to fraction form
    28,381.49/39,166.45 = 16,451.75/x
  3. Step 3: Cross multiply
    28,381.49x = 39,166.45 × 16,451.75
  4. Step 4: Simplify right side
    28,381.49x = 644,356,643.79
  5. Step 5: Solve for x
    x = 644,356,643.79/28,381.49
  6. Step 6: Final answer
    x = 22,703.41

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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.