Home / 28,355.09-39,133.74-16,260.30

Finding the Fourth Proportional to 28,355.09, 39,133.74 and 16,260.30

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Solution

The fourth proportional to 28,355.09, 39,133.74 and 16,260.30 is: 22,441.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.09 : 39,133.74 = 16,260.30 : x
  2. Step 2: Convert to fraction form
    28,355.09/39,133.74 = 16,260.30/x
  3. Step 3: Cross multiply
    28,355.09x = 39,133.74 × 16,260.30
  4. Step 4: Simplify right side
    28,355.09x = 636,326,352.52
  5. Step 5: Solve for x
    x = 636,326,352.52/28,355.09
  6. Step 6: Final answer
    x = 22,441.35

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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.