Home / 28,376.30-39,153.30-16,438.93

Finding the Fourth Proportional to 28,376.30, 39,153.30 and 16,438.93

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Solution

The fourth proportional to 28,376.30, 39,153.30 and 16,438.93 is: 22,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.30 : 39,153.30 = 16,438.93 : x
  2. Step 2: Convert to fraction form
    28,376.30/39,153.30 = 16,438.93/x
  3. Step 3: Cross multiply
    28,376.30x = 39,153.30 × 16,438.93
  4. Step 4: Simplify right side
    28,376.30x = 643,638,357.97
  5. Step 5: Solve for x
    x = 643,638,357.97/28,376.30
  6. Step 6: Final answer
    x = 22,682.25

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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.