Home / 28,357.18-39,136.62-16,262.40

Finding the Fourth Proportional to 28,357.18, 39,136.62 and 16,262.40

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Solution

The fourth proportional to 28,357.18, 39,136.62 and 16,262.40 is: 22,444.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.18 : 39,136.62 = 16,262.40 : x
  2. Step 2: Convert to fraction form
    28,357.18/39,136.62 = 16,262.40/x
  3. Step 3: Cross multiply
    28,357.18x = 39,136.62 × 16,262.40
  4. Step 4: Simplify right side
    28,357.18x = 636,455,369.09
  5. Step 5: Solve for x
    x = 636,455,369.09/28,357.18
  6. Step 6: Final answer
    x = 22,444.24

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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.