Home / 28,827.93-39,737.07-21,249.98

Finding the Fourth Proportional to 28,827.93, 39,737.07 and 21,249.98

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Solution

The fourth proportional to 28,827.93, 39,737.07 and 21,249.98 is: 29,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,827.93 : 39,737.07 = 21,249.98 : x
  2. Step 2: Convert to fraction form
    28,827.93/39,737.07 = 21,249.98/x
  3. Step 3: Cross multiply
    28,827.93x = 39,737.07 × 21,249.98
  4. Step 4: Simplify right side
    28,827.93x = 844,411,744.07
  5. Step 5: Solve for x
    x = 844,411,744.07/28,827.93
  6. Step 6: Final answer
    x = 29,291.45

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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.