Home / 28,381.69-39,160.74-16,444.30

Finding the Fourth Proportional to 28,381.69, 39,160.74 and 16,444.30

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Solution

The fourth proportional to 28,381.69, 39,160.74 and 16,444.30 is: 22,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381.69 : 39,160.74 = 16,444.30 : x
  2. Step 2: Convert to fraction form
    28,381.69/39,160.74 = 16,444.30/x
  3. Step 3: Cross multiply
    28,381.69x = 39,160.74 × 16,444.30
  4. Step 4: Simplify right side
    28,381.69x = 643,970,956.78
  5. Step 5: Solve for x
    x = 643,970,956.78/28,381.69
  6. Step 6: Final answer
    x = 22,689.66

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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.