Home / 28,737.32-39,675.71-19,677.84

Finding the Fourth Proportional to 28,737.32, 39,675.71 and 19,677.84

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Solution

The fourth proportional to 28,737.32, 39,675.71 and 19,677.84 is: 27,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.32 : 39,675.71 = 19,677.84 : x
  2. Step 2: Convert to fraction form
    28,737.32/39,675.71 = 19,677.84/x
  3. Step 3: Cross multiply
    28,737.32x = 39,675.71 × 19,677.84
  4. Step 4: Simplify right side
    28,737.32x = 780,732,074.89
  5. Step 5: Solve for x
    x = 780,732,074.89/28,737.32
  6. Step 6: Final answer
    x = 27,167.89

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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.